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SOC 47-2011
Boiler making and installation workers manufacture, assemble, install, maintain, and repair boilers, closed tanks, and pressure vessels from drawings, handling thick steel plate parts, connections, accessories, and defect inspection; the work often involves height, confined spaces, heavy components, and strict safety boundaries, and their work is not design review or the signing of inspection results.
Model impact index for three equally weighted representative core tasks; not a measured share of working time or a job-loss probability. floor((25+0+0)/3+0.5)=8; fermatmind-ai-impact-v1; 2026-10-18.
In one sentence: this is a skilled trade centered on drawing interpretation, metal assembly, welding and joining, pressure test support, and on-site installation and maintenance safety, and its output is traceable physical work and records that meet design and safety technical specifications, not design review conclusions or inspection report signing. The U.S. wage, employment, and projections data follow the precise Boilermakers (SOC 47-2011) occupation definition; mainland China has no national occupation-level wage statistics corresponding to this occupation, and this page marks this honestly rather than filling in figures.
Verify education, qualifications, and authorization separately. The United States usually requires a high school diploma or equivalent, and BLS lists a typical 4-year apprenticeship; welding or related experience may give priority or shorten the apprenticeship. Some states require a boilermaker license, usually including experience and an examination, and employers may require or prefer professional certification; verify with the target state and employer. The general training description for O*NET Job Zone 1 to 2 cannot replace this trade's 4-year apprenticeship pathway. Mainland China personnel qualifications should be verified by actual work and current assessment items, and not all auxiliary assembly positions can be uniformly required to hold the same certificate. Special equipment welding and emergency management special operations fall under different rules; from August 2026, TSG Z6002—2026 is implemented, and those who already hold a valid special equipment welding certificate but no welding and thermal cutting operation certificate must take the hot work assessment under the new rules at expiry review or when adding items, while employers must still strengthen hot work safety management in the meantime.
Boilermakers (U.S. counterpart O*NET-SOC 47-2011.00, Boilermakers) manufacture, assemble, maintain, and repair stationary steam boilers and boiler house auxiliary equipment to drawings; align structural members or plates to assemble boiler frames, tanks, or vessels; use hand and power tools, plumb bobs, levels, wedges, clamps, or turnbuckles; assist in testing assembled vessels; direct the cleaning of boilers and furnaces; and inspect and repair boiler accessories such as safety valves, regulators, automatic control mechanisms, water level indicators, and auxiliary machinery. It is not a purely manual material handling position, and the official task definition does not automatically confer design or inspection signing qualifications; taking on such positions elsewhere requires verifying qualifications and authorization independently.
Career direction comparison
The table below compares boilermakers with adjacent trades and the pathways for moving in from adjacent positions; the basis for judgment is the main output, the object of responsibility, and the required training, not how similar the trade names are.
| Career direction | Core work and output | Key differences | Best-fit choice |
|---|---|---|---|
| If you want to work around piping systems and equipment connections, consider plumbers first; if you want to handle the manufacture, assembly, and pressure joining of vessel bodies, consider boilermaking first. | Both involve piping and connections, but boilermakers center on boilers, tanks, and pressure vessel bodies and must handle thick-walled pressure parts, tube expansion, and pressure test support; plumbers focus on piping system layout and usually do not manufacture vessel bodies. | Plumbers, Pipefitters, and Steamfitters (47-2152.00) |
AI impact on this career
Editorial reasoning from the tasks: digital tools and automated equipment may assist drawing interpretation, layout, data recording, and document organization; BLS describes some automated manufacturing and welding alongside assembly and maintenance that still require people. The materials read this round contain no causal statistics on overall AI replacement, adoption rates, or time savings for this occupation, so perpetual non-replacement cannot be inferred; physical inspection and responsibility are verified against real positions and authorization. AI Impact Score 8% is an editorial estimate. Model impact index for three equally weighted representative core tasks; not a measured share of working time or a job-loss probability. floor((25+0+0)/3+0.5)=8; fermatmind-ai-impact-v1; 2026-10-18.The three tasks, ratings and sources are listed in the FermatMind method source record on this page.
FermatMind AI Impact Score estimation method v1
FermatMind / 费马测试 · 2026-10-18
Chinese mainland salary reference
Mainland China positions must be verified by equipment catalogue, actual process, the unit's licensed scope, and personnel assessment items; manufacturing, installation, welding, maintenance, and operations positions cannot be exchanged merely on the basis of the name boiler worker. Occupational classification, education and training, and individual work permits are different concepts, and this page does not claim one-to-one correspondence with U.S. 47-2011.
Mainland China positions must be verified by equipment catalogue, actual process, the unit's licensed scope, and personnel assessment items; manufacturing, installation, welding, maintenance, and operations positions cannot be exchanged merely on the basis of the name boiler worker. Occupational classification, education and training, and individual work permits are different concepts, and this page does not claim one-to-one correspondence with U.S. 47-2011.
Insufficient evidence: no national occupation monthly wage distribution precisely corresponding to boilermakers was obtained.
U.S. wage reference
The 2025 U.S. median annual wage is 76,410 USD and the median hourly wage is 36.74 USD, with annual wages ranging from 50,490 to 110,370 USD from the 10th to the 90th percentile. The current BLS Boilermakers (SOC 47-2011) projections table lists 10,200 employed in 2025 and 10,100 in 2035, a decline of 2% from 2025—2035 and a net decrease of 200, with about 700 annual openings, all from replacement demand due to transfers or exits from the labor force. The endpoints and the net change are rounded separately, and the official net change cannot be replaced by subtracting the two headcounts.
| Wage statistic position | Annual wage reference | Conversion boundary | How to understand this position |
|---|---|---|---|
| 10th percentile | 50,490 USD per year (10th percentile) | Official conversion, not personal monthly income | The 10th percentile is an annual wage of 50,490 USD; this is the low end of the distribution, does not represent all newcomers, and is not a starting salary promise. |
| 50th percentile |
Career fit guide
Direct answer: the performance editors suggest observing is being able to read drawings and complete assembly and joining within tolerances, being willing to follow safety procedures and report problems honestly, and accepting quality inspection and rework; an interest in machinery or tools alone is not enough to prove competence.
You may be better suited to： You can confirm drawings, process, and permit conditions before work and write tolerances, inspection points, and handover requirements in a checkable form; you are willing to report defects or hazards honestly rather than setting them aside.
These situations need caution： You find reading drawings and filling in records troublesome, habitually skip checks based on experience, are unwilling to wear protective equipment or accept safety corrections, and do not confirm before work at heights or in confined spaces; these directly amplify safety risks and require caution.
Do a career entry exercise： First do the fictional paper drawing interpretation, dimension, and tolerance judgment exercises on this page, review against the answers, and record errors; subsequent hands-on practical training should be organized separately by a properly equipped formal institution, and passing the paper exercises does not mean you have welding or pressure test qualifications.
Work pressure, risks, and occupational boundaries
Direct answer: main risks include falls during work at heights and in confined spaces, crushing and collision from rigging and heavy components, high temperatures and hazardous gases, fire and burns from welding and cutting, dust and noise exposure, inadequate pressure part joining or inspection support, and missing construction notification and supervisory inspection steps; control depends on work permits, safety briefings, personal protective equipment, and traceable records.
Evidence scope: the risk and boundary entries are based on the official tasks, work activities, and work context of O*NET 47-2011.00, the O*NET training and education information, the BLS Occupational Outlook Handbook, and public materials from the Special Equipment Safety Law of the People's Republic of China and the U.S. Occupational Safety and Health Administration (OSHA); they do not cover the internal rules of specific institutions.
Typical scenario：Permit, isolation, protection, monitoring, or rescue conditions that should be verified by law or site rules have not been implemented; entering a permit-required space without authorization.
Entering the field, qualifications, and career development
In the United States, a high school diploma or equivalent is usually required, and BLS lists a typical 4-year apprenticeship; welding or related experience may be preferred or may shorten the apprenticeship. Some states require a boilermaker license, usually involving experience and an examination, and employers may require or prefer professional certification; check with the target state and employer. The general training description for O*NET Job Zone 1–2 cannot replace the 4-year apprenticeship path for this trade. Positions in mainland China must be checked against the equipment catalog, the actual process, the unit's licensing scope, and personnel assessment items; manufacturing, installation, welding, repair, and operations positions cannot be interchanged on the basis of the name "boiler worker" alone. Occupational classification, education and training, and individual work permits are different concepts, and this page does not claim a one-to-one correspondence with U.S. 47-2011.
Career prospects and transfers to related occupations
The current BLS Boilermakers (SOC 47-2011) projections table lists employment of 10,200 in 2025 and 10,100 in 2035, a decline of 2% over 2025—2035 and a net decrease of 200, with about 700 annual openings that all come from replacement needs as workers transfer or exit the labor force. The endpoints and the net change are each rounded, and the official net change cannot be replaced by subtracting the two headcounts. The wage releases consulted for mainland China do not list this occupation separately, and industry wages are not used to infer occupational wages or employment.
United States · exact
10,200 people
Employment scale
The employment base for the precise occupation Boilermakers (SOC 47-2011).
Does not establish：It is the statistical basis for this precise occupation and does not include adjacent trades; it cannot be used to estimate the size of other trades.
Manufacture, assemble, install, maintain, and repair boilers, closed tanks, and pressure vessels from drawings: read drawings and lay out, cut and form, align and secure, expand or weld connections, lift into position, install accessories and instruments, check for defects, clean boilers and furnaces, repair or replace parts such as safety valve regulators, and assist with pressure testing of vessels.
The risks to watch for in advance include falls from height and in confined spaces, crushing and impact from lifting and heavy parts, high temperatures and hazardous gases, fire and burns from welding and cutting, dust and noise exposure, inadequate connections or inspection cooperation on pressure parts, and missing construction notification and supervisory inspection steps; control depends on work permits, safety briefings, personal protection, and traceable records.
Choose a real task from this page for a small practice project or a conversation with someone in the field. Use the planning guides to set a date, an output and feedback questions before deciding whether to continue.
Pause major investment first: if you do not yet understand drawings, tolerances, processes, and safety requirements, complete the paper exercises on this page first and then verify courses and qualifications with formal practical training or an apprenticeship program. Short-term training, knowing one welding method, or passing a simulated exercise does not prove that you can independently take on pressure equipment manufacturing, installation, or inspection signing.
In one sentence: manufacture, assemble, install, maintain, and repair boilers, tanks, and large vessels to drawings, with the core being reading drawings, forming, joining, aligning, checking fit, and keeping records. The U.S. counterpart is 47-2011.00, usually entered through apprenticeship. In mainland China, an operator's inspection records are not the same as a statutory inspection agency's supervisory inspection conclusion; design appraisal and construction notification obligations for boilers must be verified by equipment and process.
Signals to keep exploring: you are willing to read the drawings and process documents before starting work; you can wear protective equipment as required and accept inspection by the foreman and safety officer at heights, in confined spaces, and near noise and high temperatures; when you find problems with welds, tube expansion, or accessories, you are willing to stop and report first rather than getting it running first; and your interest in under what operating conditions a part fails and how large the consequences are exceeds your interest in how fast you worked today.
The work of boilermakers falls into three categories: first, manufacturing and assembly tasks (reading drawings and laying out, cutting and forming, aligning and securing structural members, rolling and bending, expanding or welding tube ends, and installing manholes, handholes, nozzles, and valves); second, on-site installation and repair tasks (rigging and positioning heavy plates and frames, assembling large vessels on site, repairing or replacing safety valves and regulators, straightening deformed plates, and building furnace refractory); third, inspection and record tasks (assisting with pressure tests, checking welds and accessory defects, cleaning and maintaining equipment, and filling in work and inspection support records to procedure). All three share the same traceable safety and quality chain.
Manufacturing and assembly tasks
On-site installation and repair tasks
Boilermakers work around the manufacture, assembly, installation, and repair of boilers, tanks, and vessels; plumbers (47-2152.00) work around piping systems, welders (51-4121.00) work around joining processes, sheet metal workers (47-2211.00) focus on thin-sheet products, structural iron and steel workers (47-2221.00) work on building structures, and millwrights (49-9044.00) work on machinery installation and alignment. Tasks may overlap, and it cannot be asserted that welders never take on assembly or that sheet metal workers never touch other components; responsibility, training, and work qualifications must still be verified by position.
| Dimension | Primary track | Comparison track |
|---|---|---|
| Core purpose | Manufacture, install, and maintain boilers and pressure vessels to design and safety technical specifications so that they operate safely, reliably, and traceably under pressure and high-temperature conditions. | Core purpose |
| Main subjects and basis | The subjects are boilers, tanks, vessels, pressure vessels, piping and accessories, and refractory materials; the basis is drawings and design documents, safety technical specifications and standards, welding and assembly process procedures, and on-site safe work and protection requirements. | Main subjects and basis |
| Core process | Reading drawings and laying out, cutting and forming, assembling and aligning, joining (welding, tube expansion, or riveting), rigging and positioning, pressure testing and defect inspection support, and recording and handover. | Core process |
| Main outputs | Components and vessels that meet drawings and specifications, systems installed, positioned, and connected, equipment after repair and straightening, and traceable work records and inspection support records. | Main outputs |
| Responsible party | Work inspection and records are completed by authorized operations and quality personnel; statutory supervisory inspection is carried out by approved special equipment inspection agencies to the specifications. The scope of design document appraisal should be verified against the equipment listed in Article 20 of the Special Equipment Safety Law, and not all design checks should be written as statutory appraisal. | Responsible party |
| Entry and licensing | Mainland China: Article 18 of the Special Equipment Safety Law provides for production licensing; Article 20 states that design documents for boilers and similar equipment must be appraised by an approved inspection agency before being used for manufacturing, and this does not cover all pressure vessels uniformly; Article 23 requires written notification before installation, modification, or repair work; Article 25 provides for supervisory inspection during the manufacture of boilers and pressure vessels and the installation, modification, and major repair of the listed equipment; Article 14 requires personnel qualifications to be verified under relevant national provisions, and Article 24 requires technical materials to be handed over within 30 days after acceptance. Welding, rigging, work at heights, and confined space protection should be verified separately by actual risk, work category, and site rules. | Permissions and approval |
| Conclusion boundaries | Work inspection only states the result for this component within the verified process and coverage and does not replace the overall equipment conformity or supervisory inspection conclusion. Article 41 of the Special Equipment Safety Law requires operators to report immediately when they find hazards or unsafe factors; safety management personnel have the right to decide to stop use and report when they find an emergency. Specific work stoppage, resumption, and release must be verified under the applicable procedures and authorization, and each defect should not automatically be turned into an individual statutory right to stop the whole unit. | Conclusion boundaries |
A work preparation confirmation noting the basis and open items.
Components that meet drawings and process procedures.
Components assembled in place with inspection records.
Joints and installed parts that meet joining process requirements.
Support records including inspection scope and conclusions.
Traceable work and handover records.
Before starting, verify at least six items: the position definition and unit qualifications, the apprenticeship or training pathway, the actual processes and equipment used, personal work qualification and certificate requirements, safety protection arrangements for heights and confined spaces, and the real pay method and working hours.
Occupation definition
| Install, maintain, and repair water, heating, gas, and steam piping systems, with outputs mainly being piping systems and connections. |
| If you would rather focus on welding processes and quality, consider welders first; if you are willing to take on assembly and on-site positioning responsibility at the same time, consider boilermaking first. | Welders take welding, cutting, and brazing and other joining processes as their main responsibility; boilermakers also handle reading drawings, positioning, assembling, maintaining, and test support for vessel components. Specific positions may overlap, and it cannot be asserted that welders never take on assembly. | Welders, Cutters, Solderers, and Brazers (51-4121.00) | Center on the joining process itself, completing welding, cutting, soldering, or brazing to process procedures. |
|---|
| If you would rather do thin sheet forming and building installation, compare sheet metal workers first; if you want to do the manufacture and assembly of thick-walled pressure structures, consider boilermaking first. | Sheet metal workers mainly fabricate and install thin sheet metal products; boilermakers work with boilers, tanks, large vessels, and thick metal parts. The two differ in material and output emphasis, and tolerances cannot be compared or all overlap ruled out merely on the basis of the name. | Sheet Metal Workers (47-2211.00) | Fabricate and install thin sheet metal products such as ductwork, metal roofing, and enclosures. |
|---|
| If you would rather do structure and rigging on construction sites, consider structural iron and steel work first; if you want to handle the manufacture and installation of pressure equipment, consider boilermaking first. | Both involve rigging and joining heavy metal parts, but structural iron and steel workers work on building structures while boilermakers work on pressure equipment, which requires completing joins to safety technical specifications and supporting supervisory inspection. | Structural Iron and Steel Workers (47-2221.00) | Install structural steel beams, columns, and related components for buildings, with outputs mainly being building structure installation. |
|---|
| If you would rather work around machinery precision and repair, compare millwright work first; if you want to handle boiler and pressure vessel bodies, consider boilermaking first. | Millwrights work around the installation and alignment of machinery and equipment and do not necessarily handle pressure parts; boilermakers must master the joining processes and test support requirements for pressure structures. | Millwrights (49-9044.00) | Disassemble, reassemble, calibrate, and maintain industrial machinery and equipment, primarily to restore equipment condition and precision. |
|---|
| If you are willing to build up drawing, process, and safety specification training and accept the qualification requirements, you can consider moving in; if you only want to change the job name without building up specifications and qualifications, the gap will be large. | The gap is usually not physical effort or tool use but drawings and tolerances, pressure structure processes, pressure test support, and special equipment qualification and notification requirements; being able to weld is not the same as being able to independently take on pressure part work. | Moving in from building installation or manufacturing positions | You already have welding, steel structure installation, fitting, or equipment repair experience and want to move toward pressure equipment. |
|---|
This page compares boilermakers with five adjacent trades on the same set of dimensions: career direction, core work and output, key differences, and which direction better fits each preference. Adjacent directions are described according to their own official occupational descriptions and do not mean trade names are interchangeable.
Conclusion: the basis for choosing a direction is the main output, the object of responsibility, and the required training, not how similar the names are; once the direction is set, verify item by item the target trade's training and qualification requirements, the actual processes and equipment used, safety protection arrangements for heights and confined spaces, and the unit licensing and personnel qualifications where special equipment is involved, and keep written confirmation.
Editorial ratings use the existing occupational responsibilities and AI task analysis on this page. They are not adoption rates, measured effects, job-disappearance or personal-unemployment probabilities, or official scores from Stanford or another external institution. No measured time weights or future robot deployment are assumed.
Editorial suggestion: trial tools on fictional materials for searching drawings, calculating sizes and quantities, and organizing records, measuring the time, errors, and manual corrections, and then judging whether time is saved. Tool output must still be checked against physical work, processes, and safety conditions, and this page has no experimental time-saving data for this occupation.
It depends on the organization's management requirements for process data and technical documents, the work permit and safety briefing process, and the record review and signing arrangements. Technical feasibility does not mean it is permitted for pressure part work, nor that the organization has adopted it.
Task exposure, automation adoption, and employment counts differ. The current BLS Boilermakers (SOC 47-2011) projections table lists 10,200 employed in 2025 and 10,100 in 2035, a decline of 2% from 2025—2035 and a net decrease of 200, with about 700 annual openings, all from replacement demand due to transfers or exits from the labor force. The endpoints and the net change are rounded separately, and the official net change cannot be replaced by subtracting the two headcounts. This projection is not an AI causal assessment, so it cannot be used to assert that AI causes job losses, nor can safety responsibility be used to infer that positions will never decrease.
| Work area | Task | Current change | Human control point |
|---|---|---|---|
| Drawing interpretation and assembly alignment | Study drawings to determine component positions, relationships, and dimensions, and align structural members or plates to drawings to assemble boiler frames, tanks, or vessels. | Drawing search, size and tolerance calculations, and assembly sequence prompts can be assisted. | Judge whether the drawing and process are feasible, whether the assembly sequence and tolerances are reasonable, and whether the site has safe work conditions. |
| Forming and joining work | Use hand and power tools and rolling and bending equipment to form plates, perform expansion, riveting, or welding, and install manholes, handholes, nozzles, valves, and instruments. | Cutting and bevel size calculations and welding material consumption statistics can be assisted. | Check the state of materials and bevels, whether assembly gaps and misalignment are within the allowed range, and whether the joining process meets the procedures. |
| Defect inspection and identification | Inspect boilers and pressure vessels for leaks, weak points, or defective sections, and inspect assembled vessels and individual components for defects. | Defect ledger organization and image archiving can be assisted automatically. | Judge whether a weld or accessory defect is a process problem or a material problem, and decide whether repair or escalation reporting is needed. |
| Pressure test support and records | Assist with pressure tests on vessels and record test conditions and results to procedure for verification by the inspection agency. | Test data organization and report form filling can be assisted. | Check whether the inspection scope and records are complete and confirm that defects have been handled to procedure with the basis retained. |
| Rigging, positioning, and handover | Attach slings and direct rigging equipment to position heavy frames and plates, and hand over technical materials and documents to procedure after acceptance. | Rigging plan points and handover checklist templates can be assisted. | Decide whether test and rigging conditions exist, whether work must stop or personnel must evacuate, and take responsibility for safe work. |
| Collaboration and safety briefing | Editorial scenario: communicate the work plan and inspection issues with the foreman, welders, inspection, and safety personnel; O*NET has peer communication activities, and this example safety briefing meeting is not called one of the 18 core tasks. | Briefing records and inspection checklists can be generated with assistance. | Judge whether site conditions meet safety and technical specification requirements and state the limitations. |
| Mentoring and work supervision | O*NET general work activities include training others (importance 39), but this is not one of the 18 specific tasks; the specific arrangements for mentoring and safety correction are an editorial scenario and require institutional authorization. | Training materials and key operating point organization can be assisted. | Be responsible for the team's work quality and safety execution. |
The five evidence cards explain the source, the research object, the conclusion, and the limits on use; they support the official duties, task definitions, employment and wage data, and task exposure research, do not provide an AI replacement rate, and cannot separate AI-caused changes in job counts; the general BLS employment projection is still used by the original occupation and period.
Editorial task analysis: the table below compares three groups of work directions in terms of automation impact: which steps can be assisted and which judgments and responsibilities still rest with people.
AI primarily changesEditorial task analysis: drawing and process document search, cutting size and material quantity calculations, and inspection form organization can be assisted.
Human responsibility remainsEditorial task analysis: decide the assembly sequence and tolerances, the joining process and parameters, and whether safe work conditions exist, and take responsibility for physical quality and safety.
AI primarily changesEditorial task analysis: cutting and bevel size calculations and welding material consumption and labor hour statistics can be pre-calculated automatically.
Human responsibility remainsEditorial task analysis: check the actual state of materials and bevels, confirm whether assembly gaps and misalignment are within the allowed range, record changes and machining conditions, and bear responsibility for work quality.
AI primarily changesEditorial task analysis: test data organization and defect ledgers and first drafts of work records can be generated by tools.
Human responsibility remainsEditorial task analysis: tool output must not be treated as an inspection conclusion or release basis; it must be checked item by item against the actual inspection results and signed by the responsible person.
Editorial suggestion: when introducing digital tools, use the following five items to check permissions, materials, output review, and responsibility. This is this page's control checklist, not a verified fixed procedure for all employers; the actual permitted scope of use is determined by institutional procedures and applicable rules.
First confirm this job's drawing and process basis, work permits and safety conditions, and the scope of your own qualifications.
Give only reviewable calculation and organization steps to tools, such as size and quantity calculations, test data organization, and record drafts.
Review tool output item by item against the physical state, process procedures, and permit conditions, and judge whether there is deviation or boundary crossing.
Retain drawing versions, process parameters, test data, and reasons for manual changes so that the work is traceable.
Work quality records, safety briefings, and inspection support are signed and owned by qualified and authorized people.
Unchecked size calculations or parameter settings may scrap a component or leave defects in a pressure part.
Control: Mark tool output as a draft and adopt it only after physical measurement, process checks, and inspection.
Leakage of process data, test records, and technical documents may cause commercial losses, and misuse of site information may also affect work judgments.
Control: Handle according to least knowledge and least privilege; before uploading, confirm data ownership, confidentiality requirements, and retention periods, and do not put controlled technical documents on external platforms.
Workpieces and processes that cannot be traced cannot serve as a delivery basis and cannot be reproduced during an accident investigation.
Control: Record the tool name and version, the input data scope, the reasons for manual checking and changes, and the responsible person.
Applying conclusions from different materials, operating conditions, or processes directly leads to invalid judgments.
Control: Fix the material, welding method, and parameter baseline in the process document; when changing them, record the reasons and scope of impact and re-inspect.
Work with unclear responsibility causes delays during supervisory inspection and accident investigation and may let defects enter the operating stage.
Control: Confirm the inspector and escalation chain before work begins; stop and report when work exceeds your qualifications and authorization.
First complete the paper dimension, deviation, and record exercises on this page, and then verify formal apprenticeship or practical training arrangements. Distinguish manufacturing, installation, and maintenance positions; positions that control boiler operation belong to stationary boiler operators and cannot be fully equated with manufacturing trades.
Editorial task analysis: use digital tools for reviewable steps such as reading drawings and process documents, cutting and layout calculations, welding material and labor hour statistics, and arranging inspection records; assembly tolerance judgment, joining process selection, safety protection, and anomaly handling must remain with people.
Editorial task analysis: before introducing tools, clarify the usable steps, the management permissions for process data and technical documents, the work permit and safety briefing process, and the persons responsible for filling in and reviewing records, so that any output returns to traceable drawings, processes, and inspection records.
Editorial task analysis: focus training on drawing interpretation and tolerances, metal materials and joining processes, pressure testing and defect identification, work-at-height and confined space safety, and work records and procedure execution, while also training awareness of checking digital output and automatic measurement results.
The materials consulted for this page cannot assert that the occupation will be wholly replaced or will never be replaced. Personnel must still verify drawings, processes, site conditions, and inspection conclusions within their qualifications and authorization; tool assistance capability and employment counts must be judged separately.
Source: O*NET occupation summary and detailed informationOriginal source ↗
O*NET programming skill importance is 3, and on-site mechanical operation, process, and safety ability are more direct; a low importance rating and a software list cannot be used to infer that all positions do not need to write code. Editorial suggestion: verify digital responsibilities by the actual position, and do not make AI proficiency a substitute for qualifications.
Source: The actual link is the detail page; the Hot product job posting shares are on the technology single page.Original source ↗
Drawing and process document search, cutting size and quantity calculations, test data organization, and defect ledgers and first drafts of work records; these steps are reviewable and traceable.
Source: The actual link is the Hot single page and supports only job posting technology signals; task assistance judgments are an editorial analysis.Original source ↗
The current BLS Boilermakers (SOC 47-2011) projections table lists 10,200 employed in 2025 and 10,100 in 2035, a decline of 2% from 2025—2035 and a net decrease of 200, with about 700 annual openings, all from replacement demand due to transfers or exits from the labor force. The endpoints and the net change are rounded separately, and the official net change cannot be replaced by subtracting the two headcounts.
Source: BLS Boilermakers: 2025—2035 projections table (SOC 47-2011)Original source ↗
AI inspection or release text is only a draft awaiting verification and cannot create qualifications, signing rights, or transfer of legal responsibility. The voluntary NIST AI RMF1.0 framework GOVERN2.1 to 2.3 and 3.2 recommends clarifying roles, training, decision responsibility, and human oversight; Chinese statutory inspection and work qualifications must be verified separately under the law and specific rules.
Source: NIST AI RMF GOVERN: roles, responsibilities, and accountability; statutory inspection conditions are in the qualification sectionOriginal source ↗
The O*NET, BLS, and ILO materials consulted for this page give no disappearance year for this occupation; task exposure, adoption rates, and employment counts are different concepts, and no year prediction is made from them.
Source: The actual custom entry point allows occupation fields to be selected and does not provide a job disappearance year or an AI prediction for this occupation.Original source ↗
Prioritize learning drawing interpretation and tolerances, metal materials and joining processes, pressure testing and defect identification, and work-at-height and confined space safety, and complete one supervised full work cycle; place tool use after process and safety ability.
Source: The actual link is the detail page and supports education, Job Zone, and apprenticeship examples; localtraining is another related program directory, not real-time enrollment.Original source ↗
Editorial comparison: the tasks and safety requirements of boiler and vessel manufacturing, on-site installation, and equipment maintenance can be examined separately; stationary boiler operation control is an adjacent occupation. The actual choice must verify unit licensing, personal qualifications, process, and site conditions, and cannot be exchanged merely on the basis of the job name.
Insufficient evidence: no verifiable city-level occupation monthly wage data were obtained, and this page presents no city rankings.
Insufficient evidence: no official or verifiable source supports monthly wage ranges for this occupation in other cities.
NBS2025 pre-tax annual average references (yuan per year): manufacturing urban non-private 113,594 and private 76,055; construction 92,036 and 66,275; electricity, heat, gas, and water production and supply 160,897 and 66,451. For above-scale enterprises, all personnel and production and manufacturing and related personnel are 100,572 and 79,182, 79,161 and 69,081, and 164,371 and 149,114 respectively. Match by actual employer industry, statistical coverage, and duties, and do not merge the three industries into a boiler worker wage; the production and manufacturing category includes equipment manufacturing, construction, and transmission and distribution and is also not precisely this occupation. Precise national occupation medians, percentiles, city starting salaries, and the current recruitment distribution remain insufficient evidence.
| Educational background | Position direction | Notes and verification suggestions |
|---|---|---|
| Junior high school or high school education and above, with apprenticeship or technical school training | Cutting, assembly, or welding assistant positions at manufacturing enterprises; on-site assistant positions at installation engineering companies. | Usually does not independently perform pressure part joining work; verify unit qualifications, apprenticeship arrangements, and personal qualification requirements. |
| Technical school or higher vocational education (welding, mechanical manufacturing, or electromechanical direction) | Assembly, welding, and inspection support positions at boiler and pressure vessel manufacturers; on-site installation positions at installation engineering companies. | Mainland China: Article 18 of the Special Equipment Safety Law provides for production licensing; Article 20 states that design documents for boilers and similar equipment must be appraised by an approved inspection agency before being used for manufacturing, and this does not cover all pressure vessels uniformly; Article 23 requires written notification before installation, modification, or repair work; Article 25 provides for supervisory inspection during the manufacture of boilers and pressure vessels and the installation, modification, and major repair of the listed equipment; Article 14 requires personnel qualifications to be verified under relevant national provisions, and Article 24 requires technical materials to be handed over within 30 days after acceptance. Mainland China personnel qualifications should be verified by actual work and current assessment items, and not all auxiliary assembly positions can be uniformly required to hold the same certificate. Special equipment welding and emergency management special operations fall under different rules; from August 2026, TSG Z6002—2026 is implemented, and those who already hold a valid special equipment welding certificate but no welding and thermal cutting operation certificate must take the hot work assessment under the new rules at expiry review or when adding items, while employers must still strengthen hot work safety management in the meantime. |
| Has obtained the corresponding work qualifications and has on-site experience | Maintenance and installation positions at electric power, chemical, and metallurgical enterprises. | The work scope is still determined jointly by the unit's license and personal qualifications; proficiency does not replace qualification and supervisory inspection requirements. |
| Overseas welding certification or training experience | Work positions at multinational engineering companies or export equipment manufacturing projects. | Mainland China: Article 18 of the Special Equipment Safety Law provides for production licensing; Article 20 states that design documents for boilers and similar equipment must be appraised by an approved inspection agency before being used for manufacturing, and this does not cover all pressure vessels uniformly; Article 23 requires written notification before installation, modification, or repair work; Article 25 provides for supervisory inspection during the manufacture of boilers and pressure vessels and the installation, modification, and major repair of the listed equipment; Article 14 requires personnel qualifications to be verified under relevant national provisions, and Article 24 requires technical materials to be handed over within 30 days after acceptance. Mainland China personnel qualifications should be verified by actual work and current assessment items, and not all auxiliary assembly positions can be uniformly required to hold the same certificate. Special equipment welding and emergency management special operations fall under different rules; from August 2026, TSG Z6002—2026 is implemented, and those who already hold a valid special equipment welding certificate but no welding and thermal cutting operation certificate must take the hot work assessment under the new rules at expiry review or when adding items, while employers must still strengthen hot work safety management in the meantime. |
When comparing opportunities, confirm unit qualifications, the pay method (hourly, piece-rate, or project-based), overtime and travel arrangements, and personal protective equipment provision, and do not treat an industry average as an individual wage expectation.
Installation engineering companies and on-site construction positions may fall into this category; this category's average wage is aggregated by industry and does not list this occupation separately, and this module does not derive this occupation's wage from it.
Workshop positions at boiler and pressure vessel manufacturing units may fall into this category; again only an industry average is available, which cannot represent this occupation's wage.
Boiler maintenance and operations positions at power plants may fall into this category; again only an industry average is available, which cannot represent this occupation's wage.
Digital tools will change auxiliary steps such as drawing interpretation, calculation, and recording, but they do not change the statistical definition for this occupation in mainland China: the statistical gap is unrelated to tools.
| 76,410 USD per year (median) |
| Not personal monthly income |
| The median is an annual wage of 76,410 USD; it describes the midpoint of the entire distribution, not an individual take-home income. |
| 90th percentile | 110,370 USD per year (90th percentile) | Official conversion, not personal take-home pay | The 90th percentile annual wage is 110,370 USD, describing the high end of the statistical distribution; the source gives no qualification or seniority formula for an individual to reach that value. |
|---|
Wage · 10th percentile：50,490 USD per year (10th percentile)；The national 10th percentile hourly wage of 24.28 USD is a lower percentile, and some workers still earn less than that value； it is not the lowest value in the distribution or an entry starting salary promise. This is the 2025 OEWS national row, and the linked page must be set to the national row rather than the NH local value.
Wage · 25th percentile：64,760 USD per year (25th percentile)；The 25th percentile hourly wage under the same definition is 31.13 USD. ；BLS 2025 wage percentiles shown by O*NET
Wage · median：76,410 USD per year (median)；The corresponding median hourly wage is 36.74 USD, and the median is not the entry wage. ；BLS 2025 wage percentiles shown by O*NET
Wage · 75th percentile：95,430 USD per year (75th percentile)；The 75th percentile hourly wage under the same definition is 45.88 USD. ；BLS 2025 wage percentiles shown by O*NET
Wage · 90th percentile：110,370 USD per year (90th percentile)；The 90th percentile hourly wage under the same definition is 53.06 USD； this is only a distribution position and does not prove the qualifications, industry, or work conditions of any specific individual. ；O*NET national wage row
The median is not the entry wage: it means half of practitioners earn above and half below that value; the 10th and 25th percentiles are closer to the low end of the distribution but are still affected by employer, industry, and work conditions.
Hourly and annual wages are two presentations of the same OEWS definition (that statistic is converted on a standard work year), and individual take-home or overtime income cannot be derived from them.
Both the current O*NET and BLS give 2025—2035: 10,200 employed in 2025 and 10,100 in 2035, a decline of 2%, and 700 annual openings; the BLS table lists a net change of -200, and the endpoints and change are rounded separately, so they cannot be subtracted directly to replace the table values. BLS explains that the openings all come from replacement demand due to transfers or exits and are not equal to 700 net new positions. The wage percentiles are 2025 national wages, not projected income.
Editorial comparison suggestion: verify region, employer industry, hours and overtime, travel, and gaps between contracts item by item. BLS records overtime during shutdown windows, out-of-town construction, and possible unemployment between contracts, but gives no causal income increase for education or responsibility level in this occupation.
| Industry | Median wage for this occupation within the industry | How to understand this value |
|---|---|---|
| Utility system construction | 80,060 USD per year (May 2025 median) | BLS publishes the median wage for Boilermakers within that industry; it is not an all-industry wage or an individual starting salary. |
| Other building equipment contractors | 79,110 USD per year (May 2025 median) | The within-industry median for the same occupation and wage period from BLS; the O*NET figure of 31% for other industries cannot be used to explain this industry's wage. |
| Nonresidential building construction | 74,960 USD per year (May 2025 median) | The BLS within-industry median for the same occupation; it is not an industry average. |
| Plumbing, heating, and air-conditioning contractors | 73,150 USD per year (May 2025 median) | The BLS within-industry median for the same occupation; fabricated metal product manufacturing is listed separately at 63,760 USD per year and can be verified in the original OOH table, and other unlisted scenarios are not derived. |
The United States usually requires a high school diploma or equivalent, and BLS lists a typical 4-year apprenticeship; welding or related experience may give priority or shorten the apprenticeship. Some states require a boilermaker license, usually including experience and an examination, and employers may require or prefer professional certification; verify with the target state and employer. The general training description for O*NET Job Zone 1 to 2 cannot replace this trade's 4-year apprenticeship pathway.
BLS publishes 2025 median wages for this occupation in several industries, with differences across industries; the table on this page shows utility system construction, other building equipment contractors, nonresidential building construction, and plumbing, heating, and air-conditioning contractors. Within-industry wages are not the average of all positions in the industry.
When comparing responsibilities, verify pressure joining, rigging, test support, and shift leadership responsibility and their specific pay; pay increases cannot be inferred from the number of qualifications or work speed.
The BLS precise occupation employment base； the 2035 table value is 10,100, with the net change rounded independently to -200. ；BLS Boilermakers
The current BLS precise occupation projection； the official net change cannot be replaced by subtracting the rounded employment endpoints. ；BLS Boilermakers
All annual openings are replacement demand due to transfers or exits from the labor force, not net new positions or an employment promise. ；BLS Boilermakers
Which Holland interest type is closer to boiler making and installation work?
The Holland interest code is RC (Realistic and Conventional): Realistic corresponds to designing, building, or repairing equipment, materials, and structures, including physical and manual labor, mechanical and electronic maintenance, and engineering applications; Conventional corresponds to organizing information and data by established processes and rules.
Do not use it this way: Note: a match between interest test results and the occupational interest code only indicates that the direction is close; it does not mean you already have the practical ability needed for drawing interpretation, joining processes, and safe work.
Test my Holland career interestsWhich Big Five traits are more relevant to this job?
Editorial suggestion: observe whether the person can complete inspection records to procedure, communicate under pressure, and accept team corrections; the Big Five can be used for self-reflection, and this page provides no boilermaker-specific personality validity research.
Do not use it this way: Note: treating personality scores as ability conclusions is a common misuse; this page provides no score thresholds or personality type lists.
View my Big Five personality traitsCan MBTI be used to judge whether I suit boiler making and installation work?
MBTI is not a tool for assessing career fit or work competence, and no official material supports the claim that a certain type is best suited to boilermakers. It can be used for self-reflection and understanding communication preferences, but not for training investment or hiring screening.
Do not use it this way: Note: this page lists no best-suited type and does not endorse using it to screen candidates.
Learn about my MBTI preferencesCan the Enneagram tell me whether I suit this occupation?
The O*NET and BLS materials consulted for this page provide no research on the Enneagram's correspondence with boilermaker fit or hiring; this page does not recommend positions by type. Editorial suggestion: you can organize preferences and then check the investment against actual tasks, formal training, and qualification conditions.
Do not use it this way: Note: this page provides no mapping between types and positions.
Explore my Enneagram patternsIf I am bad at math, can I work as a boiler making and installation worker?
O*NET lists critical thinking 63, reading comprehension, listening, monitoring, and speaking all at 50, and mathematics 28; mechanical knowledge 79, English 57, and mathematics 55. Importance is not an examination score, difficulty, or individual threshold, and a mathematics rating of 28 cannot be used to conclude that mathematics requirements are low; actually verify dimensions, tolerances, units, and measurement records.
Do not use it this way: Note: this page does not use any test score as a basis for admission or elimination.
Learn about my intelligence and reasoning performanceDoes boiler making and installation work require high emotional intelligence?
Editorial observation suggestion: check whether the person can stay attentive under schedule pressure, report to procedure, and accept review; O*NET work styles and context are not evidence of the predictive validity of emotional intelligence tests for this occupation, no occupation-specific validity was verified, and scores are not used in place of safety training.
Do not use it this way: Note: this page provides no emotional ability thresholds and does not equate high scores with competence.
Learn about my emotional intelligence abilitiesFits better when: You like working around piping layout, connections, and equipment tie-ins, and the work surface is more dispersed.
Watch for: You need to build up piping system and process knowledge; piping work likewise has specific qualification and specification requirements.
Explore related career: Plumbers, pipefitters, and steamfittersFits better when: You are willing to study welding methods, materials, and parameters over the long term and pursue stable joining quality.
Watch for: The welding trade requires training and qualifications for the target method, material, and position; boiler assembly experience does not automatically produce specialized welding qualifications.
Explore related career: Welders, cutters, solderers, and brazersFits better when: You are willing to fabricate or install thin sheet metal products such as ductwork and enclosures.
Watch for: Build up thin sheet forming, joining, and installation training; vessel assembly experience is not the same as thin sheet process competence.
Explore related career: Sheet metal workersFits better when: You are willing to do rigging and joining of beams, columns, and components on construction sites.
Watch for: Editorial comparison: the actual definition of structural iron and steel workers also includes metal tank installation, so vessel subjects cannot be ruled out entirely. For a transfer, verify the actual structure, pressure equipment, and the applicable process specifications, and build up structure installation and work-at-height training; cross-trade experience does not automatically confer pressure work qualifications.
Explore related career: Structural iron and steel workersFits better when: You are willing to work around industrial machinery positioning, disassembly, alignment, and measurement.
Watch for: Build up mechanical transmission, measurement, and alignment training; pressure equipment experience cannot directly cover all mechanical equipment.
Explore related career: MillwrightsFits better when: You are willing to monitor and control the operation of boilers, stationary engines, or other mechanical equipment and record operating parameters.
Watch for: Build up operation control, fault response, and target jurisdiction licensing requirements; manufacturing and maintenance experience does not automatically grant operating authority.
Explore related career: Stationary engineers and boiler operatorsMore than a personality type, it is a way of working: being able to follow safety procedures over the long term, stay focused at heights and in confined spaces, and stop and report when a problem is found rather than finishing the job first. O*NET work styles include features such as caution, attention to detail, and dependability.
Fit does not depend on introversion or extroversion. Work context shows that 96% use the telephone every day, 92% have face-to-face discussions every day, 73% have continual contact with others, and 55% say teamwork is extremely important; editorial suggestion: actually observe team handover and hazard reporting, and no ranking of predictive power against extroversion scores was verified.
Neither introversion nor extroversion directly proves competence; judge by whether the person can hand over clearly, work to drawings and procedures, and accept safety corrections, and do not assume extroversion is necessarily an advantage.
The O*NET and BLS materials consulted for this page give no MBTI type best suited to this occupation, so no type list or hiring prediction is provided. Editorial suggestion: turn preferences into verification questions and then validate them with work samples and supervised practice.
O*NET lists this occupation's interest code as RC (Realistic and Conventional): Realistic corresponds to designing, building, and repairing equipment, materials, and structures, and Conventional corresponds to handling information by process and rule. The interest code describes the characteristics of the occupational group, not an individual fit conclusion.
You cannot judge on tests alone. The O*NET and BLS materials consulted give no personality or interest score admission threshold for this occupation; this page suggests returning to work samples, supervised practice, and qualification evidence, and not treating self-test results as work authorization.
A weak mathematics foundation does not automatically exclude you. First complete the millimeter dimension, tolerance limit, and deviation judgment exercises on this page and check whether you can convert units correctly, compare ranges, and explain the basis; if you keep making errors, build up the foundation or check the apprenticeship teaching support, and do not substitute physical load for the mathematics issue.
Editorial observation suggestion: check whether the person can stay attentive under schedule pressure, report to procedure, and accept review; O*NET work styles and context are not evidence of the predictive validity of emotional intelligence tests for this occupation, no occupation-specific validity was verified, and scores are not used in place of safety training.
The O*NET and BLS materials consulted for this page give no basis for the Enneagram's correspondence with this occupation's fit, competence, or hiring, so training investment is not decided by type; self-reflection questions can be verified against actual tasks and training conditions.
First use the paper dimension table, anomaly reports, and revision records on this page to judge whether you are willing to do verification work; it is only an introductory experience, and actual competence still requires formal practical training, qualifications, and job authorization.
Possible consequence：Falls, crushing, burns, or poisoning can cause serious injury and lead to work interruption and accountability.
How to reduce risk：Responsible personnel should verify permits, isolation, protection, monitoring, and rescue arrangements by jurisdiction, space risk, and work category. U.S. construction confined spaces follow OSHA1926.1203, distinguishing general spaces from permit-required spaces; not all height or confined space activities should be treated as the same permit.
Evidence：O*NET Boilermakers details · OSHA construction confined space clauses
Typical scenario：Welding without process qualification or parameter verification, or failure to repair defects found in inspection as required.
Roles most affected：Users, the construction unit, and the inspection agency
Possible consequence：Defects in pressure part joining or assembly may fail during operation, causing equipment damage and personal injury.
How to reduce risk：Work to drawings and process procedures, keep joining and inspection records, support supervisory inspection, and rectify as required.
Evidence：O*NET Boilermakers details · Special Equipment Safety Law of the People's Republic of China
Typical scenario：Engaging in production without obtaining a license, failing to perform construction notification, or leaving the factory or delivering for use without supervisory inspection.
Roles most affected：The construction unit and the equipment user
Possible consequence：In China, production of applicable equipment should be undertaken by a licensed unit; equipment within the scope of statutory supervisory inspection must not leave the factory or be delivered if it has not been inspected or fails inspection. Unit production licensing and equipment inspection results are two separate obligations, and the equipment itself cannot be described as lacking production licensing.
How to reduce risk：Mainland China: Article 18 of the Special Equipment Safety Law provides for production licensing; Article 20 states that design documents for boilers and similar equipment must be appraised by an approved inspection agency before being used for manufacturing, and this does not cover all pressure vessels uniformly; Article 23 requires written notification before installation, modification, or repair work; Article 25 provides for supervisory inspection during the manufacture of boilers and pressure vessels and the installation, modification, and major repair of the listed equipment; Article 14 requires personnel qualifications to be verified under relevant national provisions, and Article 24 requires technical materials to be handed over within 30 days after acceptance.
Evidence：Special Equipment Safety Law of the People's Republic of China
Typical scenario：Substituting proficiency for formal qualifications, or continuing to work when a certificate has expired or the scope does not match.
Roles most affected：Operators and employers
Possible consequence：Performing the relevant work without the required qualifications may lead to being ordered to correct the situation and to bearing liability.
How to reduce risk：Qualifications of personnel in mainland China should be checked against the actual work and current assessment items, and not all auxiliary assembly positions should be required to hold the same certificate. Special equipment welding and emergency management special operations fall under different rules; TSG Z6002—2026 takes effect from August 2026, and those who hold a valid special equipment welding certificate but no welding and thermal cutting operation certificate must take a hot work assessment under the new detailed rules when their certificate is due for review or when new items are added, and employers must still strengthen hot work safety management in the meantime. Order No. 19 of the Ministry of Emergency Management has been in force since 2026-06-01; for the special operations it covers, personnel must be trained and assessed and hold an operation certificate before working, and where other departments have other provisions, those provisions apply.
Evidence：Special Equipment Safety Law of the People's Republic of China
Typical scenario：Unclear division of work scope and inspection responsibility between the subcontractor and the general contractor, with no one reviewing key processes.
Roles most affected：Client and construction unit
Possible consequence：When responsibility is not clearly divided, tracing and correcting defects or accidents is easily blocked.
How to reduce risk：Editorial suggestion: check the scope of work, inspection points, handover documents, and escalation chain in the contract and the briefing, and keep version and signature records; verify the specific procedures and responsibilities against the actual contract and the unit's statutory obligations.
Evidence：O*NET Boilermakers summary · Special Equipment Safety Law of the People's Republic of China
Typical scenario：Not wearing, or incorrectly wearing, protective equipment in noisy, dusty, or hazardous gas environments.
Roles most affected：Workers and crews
Possible consequence：Long-term dust, noise, and heavy physical work may cause cumulative health damage.
How to reduce risk：Arrange engineering controls, protection, and necessary occupational health surveillance and records based on an actual exposure assessment; job rotation cannot replace exposure control, and the recommendations on this page should not be treated as a complete protection design.
Evidence：O*NET Boilermakers details
| Entry-level position | What you mainly do at the start of the job | Position verification suggestion (editorial compilation) | How to prove it when you have no experience | Differences from other directions |
|---|---|---|---|---|
| Workshop positions at boiler and pressure vessel manufacturing units | Under a mentoring master, do layout, cutting, grinding, and assembly assistance; first become familiar with drawing symbols, tolerances, and workshop safety rules. | Editorial suggestion: verify the specific education and training, relevant experience, qualification items, work scope, and safety arrangements of the position, based on the actual job posting and written replies. | Attach this page's SIM-01 three-round dimension tables and the exception report, note that it is a paper exercise, and later add formal practical training records. | This path does not independently perform pressure-part connections; unit licensing, individual qualifications, and inspection arrangements must be checked. |
| On-site installation positions at installation engineering companies | Assist with lifting and positioning, connect piping and accessories, clean and inspect, and gradually learn the work permit and safety briefing process. | Editorial suggestion: verify the specific education and training, relevant experience, qualification items, work scope, and safety arrangements of the position, based on the actual job posting and written replies. | Submit a sample on-site work preparation checklist explaining the key points of work permits, protection, and tool inspection. | On-site safety, permit, and monitoring arrangements must be checked against risk, process, jurisdiction, and site rules; do not change lifting or connection plans on your own. |
| Maintenance positions at power, chemical, and metallurgical enterprises | Participate in maintenance, cleaning, and replacement of the boiler body and accessories, and learn shutdown maintenance planning and isolation work requirements. | Editorial suggestion: verify the specific education and training, relevant experience, qualification items, work scope, and safety arrangements of the position, based on the actual job posting and written replies. | Submit a maintenance work checklist covering isolation, cleaning, and accessory inspection points. | Shutdown and isolation are approved by the operations and safety departments; maintenance personnel do not take on operations command responsibility. |
| Welding specialty positions (focused on joining processes) | Complete welding and cutting according to process specifications, control the groove, parameters, and interpass temperature, and self-inspect the appearance. | Editorial suggestion: verify the specific education and training, relevant experience, qualification items, work scope, and safety arrangements of the position, based on the actual job posting and written replies. | First attach paper-based process verification questions and a qualification checklist; real weld samples require formal training and must note your own responsibilities. | Welding expertise does not replace overall assembly and positioning responsibility; work involving pressure parts has separate qualification and inspection requirements. |
| Transfer from adjacent trades (pipefitter, sheet metal worker, structural ironworker, mechanical assembler) | Take on connection, assembly, or equipment maintenance tasks and become familiar with on-site safety and record processes. | Editorial suggestion: verify the specific education and training, relevant experience, qualification items, work scope, and safety arrangements of the position, based on the actual job posting and written replies. | Submit a reviewable output compiled from tasks in your existing trade and explain the gap from pressure equipment work. | Experience in an adjacent trade does not equal a qualification for pressure-part work; a transfer requires making up process, specification, and qualification requirements. |
The United States usually requires a high school diploma or equivalent, and BLS lists a typical 4-year apprenticeship; welding or related experience may give priority or shorten the apprenticeship. Some states require a boilermaker license, usually including experience and an examination, and employers may require or prefer professional certification; verify with the target state and employer. The general training description for O*NET Job Zone 1 to 2 cannot replace this trade's 4-year apprenticeship pathway.
Specific education and teaching arrangements in China should be checked against formal programs and position requirements; do not copy the U.S. apprenticeship path into a Chinese statutory education requirement.
Qualifications of personnel in mainland China should be checked against the actual work and current assessment items, and not all auxiliary assembly positions should be required to hold the same certificate. Special equipment welding and emergency management special operations fall under different rules; TSG Z6002—2026 takes effect from August 2026, and those who hold a valid special equipment welding certificate but no welding and thermal cutting operation certificate must take a hot work assessment under the new detailed rules when their certificate is due for review or when new items are added, and employers must still strengthen hot work safety management in the meantime.
Safety induction, permit procedures, isolation, protection, and occupational health arrangements should be checked against equipment, work category, risk, and jurisdiction; paper exercises do not grant operating authority.
O*NET lists critical thinking 63; reading comprehension, listening, monitoring, and expression 50; mechanical knowledge 79, English 57, and math 55, and work activities are mainly mechanical maintenance, obtaining information, and inspection.
Interests RC and importance describe an occupational group, not a personal score threshold; use the chart-reading record on this page to observe your own way of checking.
All editor-created, all units in mm: rectangular plate outline L=500±1, W=300±1; the lower left corner is the origin, hole A center (x=50±0.5, y=40±0.5), hole B center (x=450±0.5, y=40±0.5), and the horizontal center distance between the two holes is Bx−Ax=400±0.5. Each limit includes its endpoints. Check only these dimensions; no material, welding method, or pressure design is provided.
Initial measurement M1: L500.6, W298.8, Ax50.2, Ay39.7, Bx450.9, By40.1. Revision M2 changes only Bx to 450.4; M3 then changes W to 300.2, with all other values unchanged. The revisions are fictional re-measurement data, do not require actual machining, and M1 must not be crossed out.
The only tools are pen and paper, a calculator, or a local spreadsheet; 120 minutes: 30 minutes to draw the sketch and the upper and lower limits, 45 minutes to record and judge three times, 25 minutes for the exception report, and 20 minutes to check against the answer. Actual cutting, welding, lifting, entering vessels, or pressure testing are prohibited, and no practical training station or outside personnel are needed to complete it.
Draw a sketch with the origin and units, list the upper and lower limits for L/W/Ax/Ay/Bx/By and the horizontal distance, and for M1, M2, and M3 fill in the measured value, the deviation (measured − nominal), and pass or pending item by item; calculate the horizontal distance as Bx−Ax and do not confuse it with the diagonal distance. If any item fails, that round is "dimensions pending"; only when all pass is it "dimension check passed".
Submit the three-round dimension tables, the exception report, and the revision records, and state which round can be called dimension check passed, and why it cannot be called manufacturing qualified, welding qualified, or pressure safe. The exception report lists the drawing version SIM-01, the record versions M1/M2/M3, out-of-limit items, review requests, and items to be confirmed; do not change drawing limits on your own.
List the target jurisdiction, equipment, process, education and training, individual assessment items, unit licensing, and authorization; attach a source, a data period, and items to be confirmed to each.
Do not mix apprenticeship completion, a special operations certificate, a special equipment welding qualification, and unit licensing into the same status.
Attach the SIM-01 sketch, the M1/M2/M3 seven-item table, and the three-round conclusions, compare item by item with this page's reference answer, and note the differences.
You can review it yourself; if you ask a master to review it, record the real feedback separately; if there is no external review, state clearly that you did not obtain one, as it does not block the paper exercise.
Report the three out-of-limit items in M1, that the width still fails in M2, and that the dimensions listed in M3 pass, and keep the original records and the two revision reasons for Bx and W.
This only explains the dimensions in the problem; it cannot sign off manufacturing qualification, welding qualification, an inspection report, or pressure release.
Attach the input data, calculation formulas, tables, or paper trail; if you use AI, record the scope of assistance and the manual corrections, and finally write whether to continue, build basics, or compare adjacent positions.
Note that material, welds, measuring tool calibration, and on-site risks are unverified; do not upload real drawings and do not touch real equipment.
| Stage | Possible assessment | Observation evidence | Usage boundary |
|---|---|---|---|
| Before applying | Verify the position duties, unit qualifications, work environment, and individual qualification requirements, and prepare practical training or practice work. | A portfolio description noting its purpose and dimension records; able to explain clearly the difference between an on-site installation position and a workshop manufacturing position. | Do not treat short-term training as proof that you can independently perform pressure-part work, and do not promise duties beyond your own qualification scope. |
| During the interview | Scenario question: how to handle work at height without a work permit when the schedule is tight, or the handling process when a weld defect is found. | Able to first explain the order of stopping work, reporting, and handling according to procedures; able to state your own uncertainty clearly. | Do not promise qualifications, performance, or medical conclusions that cannot be verified in the interview. |
Read O*NET and BLS, write the differences between manufacturing, installation, repair, and operations positions, and attach sources and jurisdiction.
Copy the SIM-01 dimensions, tolerances, and origin and M1—M3, calculate the seven upper and lower limits, and draw the sketch.
Complete the seven M1 deviations and their pass or pending status, and record the three out-of-limit items W, Bx, and the horizontal distance.
Calculate M2 and M3; explain why M2 still cannot be written as dimension check passed, and keep the two revisions and the original measurements.
Check item by item against this page's answer, correct formula or unit errors, and save the before-and-after differences; no hands-on machining or mentor appointment is needed.
Organize the three-round tables and the exception report, and list the qualification and unit licensing verification questions for the target position; you may ask a master to review them, and note it if you could not arrange one.
| Qualification / identity | Who it mainly suits | Real-world job search value | Whether it is a common hiring threshold | Examination / regulatory and ethical conditions | Investment level | Important limitations |
|---|---|---|---|---|---|---|
| High school diploma or equivalent (United States) | People planning to enter Boilermakers in the United States | BLS typical entry-level education. | Generally required; verify with the specific employer. | It is not that the general O*NET Job Zone implies all positions require an associate degree. | Verify the actual program length with the school or program. | Education is not the same as a state license, professional certification, or process authorization. |
| Apprenticeship (United States) |
Typical scope：Complete layout, cutting, and assembly assistance under supervision.
Readiness evidence：Records of supervised layout and assembly practice.
Credential boundary：Take part in an apprenticeship or technical school training.
Next moves：Editorial-stage suggestion: do not independently perform pressure-part connections, and review each item individually. The actual scope you may take on depends on qualification items, unit authorization, and mentoring procedures, and is not a uniform promotion rule for all personnel.
Typical scope：Take on the assembly and connection of routine parts; complex processes require review.
Readiness evidence：Assembled and connected parts with dimensional and process parameter records.
Credential boundary：Obtain the relevant work qualification and complete on-the-job training.
Next moves：Work according to process specifications and do not operate beyond scope.
Typical scope：Lead the quality and process arrangement of parts manufacturing and take responsibility for work quality.
Readiness evidence：Complete work and inspection-cooperation records.
Credential boundary：Holds multiple work qualifications and is familiar with technical specifications.
Next moves：Take responsibility within the authorized scope and keep inspection and handover records.
Typical scope：Organize safety briefings, review work plans, and mentor newcomers.
Readiness evidence：Review records and training records.
Credential boundary：Has mentoring and plan review capabilities.
Next moves：Responsible for crew work standards and safety execution.
Typical scope：Assist with lifting and positioning, connection, and cleanup.
Readiness evidence：Work preparation and tool inspection checklist.
Credential boundary：Complete safety induction education and basic training.
Next moves：Editorial-stage suggestion: do not independently direct lifting and work at height. The actual scope you may take on depends on qualification items, unit authorization, and mentoring procedures, and is not a uniform promotion rule for all personnel.
Typical scope：Take on routine installation and repair work; complex conditions require review.
Readiness evidence：Work records including permits, protection, and connection records.
Credential boundary：Obtain the relevant qualifications and become familiar with the work permit process.
Next moves：Work according to permit and briefing requirements, and report any abnormality.
Typical scope：Lead on-site installation and repair, and cooperate with pressure testing and supervisory inspection.
Typical scope：Complete routine welding and cutting work under supervision.
Readiness evidence：Practice piece records with parameters and visual self-inspection.
Credential boundary：Complete basic welding training and safety training.
Next moves：Editorial-stage suggestion: do not independently undertake pressure-part welding. The actual scope you may take on depends on qualification items, unit authorization, and mentoring procedures, and is not a uniform promotion rule for all personnel.
Typical scope：Take on routine welding work and control visual and internal quality.
Readiness evidence：Weld records with process parameters and inspection results.
Credential boundary：Obtain the welding method qualification and meet recertification requirements.
Next moves：Work according to process specifications and do not change parameters without authorization.
Typical scope：Take on welding and repair of critical locations and cooperate with inspection body verification.
Complete process qualification and work records.
Able to complete layout, cutting, and simple assembly from drawings under supervision, correctly use hand tools and protective equipment, and identify situations that need to be reported.
Able to independently complete the assembly and connection of routine parts, control tolerances according to process specifications, and proactively report defects or conditions that do not meet requirements.
Able to lead on-site installation and repair work, cooperate with pressure testing and supervisory inspection, and take responsibility for work quality and safety conditions.
Able to review work plans, organize safety briefings, mentor newcomers, and establish work and record standards for the crew.
United States · exact
A decline of 2% (about 700 annual openings)
Growth rate and annual openings
The precise BLS occupation declines 2%, with about 700 annual openings; in 2035 it is 10,100, and the listed net change is -200; the fields are each rounded.
Does not establish：This occupation is on a declining basis, and openings come mainly from replacement needs; this is not a personal employment guarantee.
Mainland China · industry_proxy
Insufficient evidence: precise national occupational wages, employment, and the current hiring distribution; select the reference by actual industry, unit coverage, and duties.
The industry and broad personnel category averages are for matching reference only; precise national occupational wages and employment distribution are still missing, and the reference is not filled in as precise occupational values.
NBS2025 pre-tax annual average reference (yuan/year): manufacturing urban non-private 113,594 and private 76,055; construction 92,036 and 66,275; electricity, heat, gas, and water production and supply 160,897 and 66,451. For units above designated size, all personnel and production and related personnel in order are 100,572 and 79,182, 79,161 and 69,081, 164,371 and 149,114. Match against the actual employer industry, statistical coverage, and duties, and do not merge the three industries into a boiler worker wage; the production and manufacturing category includes equipment manufacturing, construction, and transmission and distribution, and is not the precise occupation either.
Does not establish：This basis mixes multiple types of positions and cannot serve as the occupational wage or employment scale for this occupation.
These are capability relationships, not automatic promotions or credential waivers.
Transfers：Editorial transfer comparison: what carries over is joining process and on-site work experience.
Build next：Editorial transfer comparison: pipe system and process training must be made up; piping work has separate qualification requirements.
View career profileTransfers：Editorial transfer comparison: what carries over is drawing reading and joining craftsmanship.
Build next：Editorial transfer comparison: systematic training in welding methods and quality control must be made up.
View career profileTransfers：Editorial transfer comparison: what carries over is the metalworking and installation foundation.
Build next：Editorial transfer comparison: sheet metal forming and building installation training must be made up.
View career profileTransfers：Editorial transfer comparison: what carries over is lifting and on-site collaboration experience.
Build next：Editorial transfer comparison: structural installation and work at height training must be made up.
View career profileTransfers：Editorial transfer comparison: what carries over is disassembly, assembly, and on-site repair ability.
Build next：Editorial transfer comparison: mechanical drive, calibration, and measurement training must be made up.
View career profileTransfers：Editorial transfer comparison: what carries over is repair experience with the boiler body and accessories.
Build next：Editorial transfer comparison: knowledge of operating equipment in service and isolation work must be made up.
View career profileTransfers：Editorial transfer comparison: what carries over is equipment inspection, fault records, and tool and disassembly experience.
Build next：Editorial transfer comparison: integrated facilities, electromechanical, or building maintenance skills must be made up, and processes requiring special permits must be checked.
View career profileTransfers：Editorial transfer comparison: what carries over is tool preparation, material handling, and construction collaboration experience.
Build next：Editorial transfer comparison: piping construction basics and on-site assistance processes must be made up, working under mentoring requirements.
View career profileFit signals are being able to read drawings and complete assembly and connection within tolerances, being willing to follow safety rules and report problems honestly, and accepting quality inspection and rework; an interest in machinery or tools alone is not enough to prove competence.
Digital tools and automated equipment can assist with drawing reading and layout, dimension and quantity calculation, welding parameter records, detection data organization, and first drafts of work records; assembly tolerance judgment, on-site positioning and connection work, handling of abnormalities, and safety responsibility still rest with people.
Drawings, processes, safety conditions, and records must be reviewed by personnel with the corresponding duties, qualifications, and authorization; statutory inspection in mainland China is carried out by approved bodies and qualified inspection and testing personnel. AI output cannot replace qualifications, authorization, or signing responsibility.
The United States usually requires a high school diploma or equivalent, and BLS lists a typical 4-year apprenticeship; welding or related experience may give priority or shorten the apprenticeship. Some states require a boilermaker license, usually including experience and an examination, and employers may require or prefer professional certification; verify with the target state and employer. The general training description for O*NET Job Zone 1 to 2 cannot replace this trade's 4-year apprenticeship pathway. Mainland China personnel qualifications should be verified by actual work and current assessment items, and not all auxiliary assembly positions can be uniformly required to hold the same certificate. Special equipment welding and emergency management special operations fall under different rules; from August 2026, TSG Z6002—2026 is implemented, and those who already hold a valid special equipment welding certificate but no welding and thermal cutting operation certificate must take the hot work assessment under the new rules at expiry review or when adding items, while employers must still strengthen hot work safety management in the meantime.
O*NET U.S. respondent work context: 96% communicate by telephone every day, 92% have face-to-face discussions every day, and 73% are in contact with others continually; 80% work more than 40 hours per week, 20% work 40 hours, and 43% have irregular schedules. Time pressure is at least once a week but not every day for 73% and every day for 18%; professional protective equipment is at least once a month but not every week for 38%, and work at height is at least once a week but not every day for 23%. Extreme heat or cold 17%, noise 18%, contaminants 18%, and severe weather 19% are all the corresponding responses of at least once a month but not every week. The percentages are respondent distributions for different questions, cannot be added together, and are not exposure rates or accident probabilities for positions in China.
For O*NET respondents, 80% work more than 40 hours per week, 20% work 40 hours, and 43% have irregular schedules; time pressure is at least once a week but not every day for 73% and every day for 18%. BLS notes that shutdown maintenance and delivery deadlines may require overtime, and that workers may be idle when a contract ends; not all positions have fixed schedules.
The current BLS Boilermakers (SOC 47-2011) projections table lists employment of 10,200 in 2025 and 10,100 in 2035, a decline of 2% over 2025—2035 and a net decrease of 200, with about 700 annual openings that all come from replacement needs as workers transfer or exit the labor force. The endpoints and the net change are each rounded, and the official net change cannot be replaced by subtracting the two headcounts. Moving to an adjacent trade requires making up the target process, qualification, and safety training.
The U.S. data come from the BLS 2025 OEWS national wages presented by O*NET, and the precise occupation is Boilermakers (SOC 47-2011); the National Bureau of Statistics 2025 urban unit wage release consulted in this round does not list a corresponding Chinese occupational wage separately. Industry averages cannot replace an occupational distribution, and this round of review cannot be used to assert that no public channel has such data.
The O*NET technology list names only 8 categories of software and tools (AutoCAD, Outlook, SAP, Office, Windows, Excel, Word, and others, many marked Hot Technology); the core abilities are drawing reading and tolerances, metal forming and assembly, welding and joining processes, use of measuring tools, and safe work.
Mainland China: Article 18 of the Special Equipment Safety Law provides for production licensing; Article 20 states that design documents for boilers and similar equipment must be appraised by an approved inspection agency before being used for manufacturing, and this does not cover all pressure vessels uniformly; Article 23 requires written notification before installation, modification, or repair work; Article 25 provides for supervisory inspection during the manufacture of boilers and pressure vessels and the installation, modification, and major repair of the listed equipment; Article 14 requires personnel qualifications to be verified under relevant national provisions, and Article 24 requires technical materials to be handed over within 30 days after acceptance. Mainland China personnel qualifications should be verified by actual work and current assessment items, and not all auxiliary assembly positions can be uniformly required to hold the same certificate. Special equipment welding and emergency management special operations fall under different rules; from August 2026, TSG Z6002—2026 is implemented, and those who already hold a valid special equipment welding certificate but no welding and thermal cutting operation certificate must take the hot work assessment under the new rules at expiry review or when adding items, while employers must still strengthen hot work safety management in the meantime.
The work involves height, confined spaces, lifting, noise, and high temperatures: 80% work more than 40 hours per week and 43% have irregular shifts; 96% use a telephone every day and 92% have face-to-face discussions every day, 55% say teamwork is extremely important, and 39% have high responsibility for the health and safety of others.
FermatMind career content editorial team: compiled from public sources including O*NET, BLS, the National Bureau of Statistics, the Special Equipment Safety Law of the People's Republic of China, and the U.S. Occupational Safety and Health Administration, with the basis and data period marked item by item.
Data periods: occupational source updated 2026; industry and national OEWS wages 2025; O*NET and BLS projections 2025—2035; Chinese unit wages 2025. Order No. 19 took effect on 2026-06-01 and TSG2026-08-01 took effect; NCCER specifications 2024-11, course second edition 2010; this round verified the original texts on 2026-10-09. No claim is made that the TSG detailed rules, the complete inspector qualification rules, or real-time enrollment were reviewed in full.
Main sources: the O*NET47-2011.00 details page, 2025 industry data, the 2025—2035 projections, 2025 national wages, and related training and five-certification catalogs; the BLS Occupational Outlook Handbook; NBS2025 Tables 2, 5, and 7 with notes; the Special Equipment Safety Law, Order No. 19, and the TSG2026 implementation notice; OSHA1926.1203; sections designated GOVERN in the NIST AI RMF1.0; the NCCER three-assessment specifications and the National Board commission overview. ILO140 provides general task exposure background and does not give a substitution rate for this occupation.
Limitations：The task list describes the work of the occupational group and does not mean that every position performs all 18 tasks.
Limitations：A U.S. occupational classification; it does not directly prove Chinese position identity, unit licensing, or work qualifications.
Limitations：The industry distribution describes a statistical classification and is not used to derive industry wages or employment scale.
Limitations：The label indicates frequency of appearance in job postings and does not represent the degree of equipment automation or job substitution.
Limitations：This link is to the O*NET detailed occupational profile and supports the general training profile and apprenticeship entry; it does not prove that a specific school program is recognized, nor is it a recommendation of a training institution.
Limitations：The typical entry-level education and training format is a national description and does not represent the requirements of a specific employer.
Limitations：Use the United States national row of the page with state parameters; do not use the New Hampshire state wage.
Limitations：The projection endpoints, net change, and percentage are each rounded; the listed change is not rewritten by subtracting endpoints, and no extrapolation is made to China or to individual employment.
Limitations：Aggregated by industry sector and broad position category, without listing this occupation separately; this page does not infer occupational wages from it.
Limitations：This provision applies to confined spaces in U.S. construction; it does not cover all work at height and occupational health requirements, nor does it constitute a compliance determination for specific work or a complete protection design.
Limitations：This law regulates the production, operation, use, inspection and testing, and supervision of special equipment, and does not establish an occupational statistical basis.
Limitations：The task exposure index does not provide job count forecasts for a single occupation, and is not an adoption rate or an unemployment rate.
Limitations：The paper exercises, portfolio, and seven-day plan on this page are editorial design; the links are only occupational background, and no external source publishes this exercise or proves qualification.
Limitations：The framework provides a general structure for AI risk governance and does not constitute a compliance determination or safety guarantee for a specific system.
Limitations：Use the United States national row of the page with state parameters; do not use the New Hampshire state wage.
Limitations：Adjacent occupations must be checked separately against their own tasks, qualifications, and safety requirements, and cannot be interchanged by name.
Limitations：The method note describes the statistical scope and estimation basis of OEWS and does not provide specific values for a single occupation.
Limitations：The applicable operations catalog and departmental rules must be checked separately, and not all boiler positions are treated as the same special operation.
Limitations：Explains the transition conditions for the hot work assessment of existing valid certificates; no automatic mutual recognition of certificates across departments is promised on that basis.
Limitations：A comparison of U.S. duties; it does not represent an individual Chinese work permit.
Limitations：Not a safety supervisor or inspection body position.
Limitations：Not a position that signs inspection or testing results.
Limitations：Occupational group information is not a personal threshold; the catalog is not real-time enrollment or a required license for all workers.
Limitations：Occupational group information is not a personal threshold; the catalog is not real-time enrollment or a required license for all workers.
Limitations：Occupational group information is not a personal threshold; the catalog is not real-time enrollment or a required license for all workers.
Limitations：Occupational group information is not a personal threshold; the catalog is not real-time enrollment or a required license for all workers.
Limitations：Occupational group information is not a personal threshold; the catalog is not real-time enrollment or a required license for all workers.
Limitations：The actual industry, unit coverage, and personnel category must match; the pre-tax annual average is not an occupational median, starting salary, or city monthly wage, and excludes self-employed individuals and freelancers.
Limitations：Background links are not causal evidence for the suggestions; there is no measured substitution ranking, time saving, test predictive validity, universal promotion system, or hiring guarantee.
Limitations：Human responsibility and oversight recommendations of a voluntary risk framework, not boiler inspection qualifications, statutory licensing, or on-site operating authorization.
Limitations：The four-level course suggests 700 hours including Core, and does not replace the typical four-year BLS apprenticeship; the three types of assessment are not a universal statutory license.
Limitations：Knowledge assessment and practical verification are distinguished; the fees and the complete branches of eligibility still need to be checked with the certification center.
Limitations：Knowledge assessment and practical verification are distinguished; the fees and the complete branches of eligibility still need to be checked with the certification center.
Limitations：Knowledge assessment and practical verification are distinguished; the fees and the complete branches of eligibility still need to be checked with the certification center.
Limitations：IS and AI inspectors have separate education, experience, employment, and examination conditions; it is not a uniform certificate for manufacturing workers, and the specific credit branches and fees have not been verified.
Limitations：The catalog written assessment must be checked against current issuing rules; it is not a legal basis or a uniform entry threshold.
Limitations：The catalog written assessment must be checked against current issuing rules; it is not a legal basis or a uniform entry threshold.
Limitations：The catalog written assessment must be checked against current issuing rules; it is not a legal basis or a uniform entry threshold.
Limitations：The catalog written assessment must be checked against current issuing rules; it is not a legal basis or a uniform entry threshold.
Limitations：The catalog written assessment must be checked against current issuing rules; it is not a legal basis or a uniform entry threshold.
Limitations：Supports only the target; distance, remedial study, and skill transfer are editorial comparisons.
Limitations：Supports only the target; distance, remedial study, and skill transfer are editorial comparisons.
Limitations：Supports only the target; distance, remedial study, and skill transfer are editorial comparisons.
Limitations：Supports only the target; distance, remedial study, and skill transfer are editorial comparisons.
Limitations：Supports only the target; distance, remedial study, and skill transfer are editorial comparisons.
Limitations：Supports only the target; distance, remedial study, and skill transfer are editorial comparisons.
Usage note: U.S. wages and projections for the same occupation are listed with their own data periods; the Chinese wage release does not list this occupation separately, and personal income is not converted. The paper exercises and transfer suggestions are editorial design, not qualification examinations, hiring guarantees, or on-site work plans.
Big Five personality test (English) · MBTI personality test (Chinese) · Enneagram test (Chinese) · Intelligence and reasoning test (Chinese)
Education and training pathway
Methods and tools
Safety and work permits
Construction notification and inspection support
Pay and working hours
O*NET lists 8 software categories including AutoCAD, Outlook, SAP, Office, Windows, Excel, Word, and safety training software; on site, measurement, forming, joining, and lifting tools are also used.
Hot Technology indicates how often a technology appears in hiring across employers; it does not prove that a given unit uses it or that tools replace work and safety training.
Ranges: L[499,501], W[299,301], Ax[49.5,50.5], Ay/By[39.5,40.5], Bx[449.5,450.5], horizontal distance [399.5,400.5]. The M1 deviations are, in order, +0.6, −1.2, +0.2, −0.3, +0.9, +0.1, and the horizontal distance is 400.7 with a deviation of +0.7; W, Bx, and the horizontal distance fail, the rest pass, and the whole round is pending.
M2: Bx450.4 passes with a deviation of +0.4, and the horizontal distance is 400.2 with a deviation of +0.2, which passes; W is still 298.8 and fails, so the whole round is still pending. M3: W300.2 passes with a deviation of +0.2, the other values are the same as M2, and all seven items pass. You may only write "the dimensions listed in SIM-01 pass the dimension check"; keep the three rounds of data and the two revision reasons, and note that material, joint quality, measuring tool calibration, and real safety are all unverified.
The tolerances in the problem are only fictional exercise conditions and are not boiler or pressure vessel design standards. This exercise involves no physical objects, welds, pressure, or compliance certification, and a matching answer does not create a work qualification or release authority; real processes are carried out only under formal training, applicable qualifications, and position authorization.
| Probation period | Complete layout, assembly, and connection work under supervision, and accept item-by-item checks on dimensions, process, and records. | Dimensions and tolerances meet requirements, process parameters follow specifications, inspection and records are complete, and changes are documented. | Do not independently perform work beyond your qualification scope, and do not change approved technical plans and safety measures without authorization. |
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| 90 days after onboarding | Check according to plan whether individual qualifications, work authorization, and safety training are in place, and assess operating discipline and collaboration style. | Able to independently complete routine processes and to proactively stop and report when uncertain or when conditions do not meet requirements. | Qualifications and authorization must be confirmed in writing, not replaced by verbal promises. |
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Decide whether to continue, build basics, or switch direction based on how complete your records are and how you feel about drawing reading, checking, and error correction; also check the cost, courses, and qualifications of formal practical training, as passing on paper does not mean actual competence.
| People who systematically learn this trade |
| BLS typical path, usually 4 years. |
| Most people enter through an apprenticeship, but it is not the only route for all employers. |
| Welding or related experience may be preferred or may shorten it; verify by program. |
| Usually 4 years of on-the-job work and coursework. |
| Some states also require a license; apprenticeship completion cannot replace all regulatory requirements. |
| State licensing and professional certification (United States) | People required by the target state or employer | Licensing in some states usually involves experience and an examination; employers may require or prefer professional certification. | It depends on the state and the position; it is not a nationally uniform license. | Check the current conditions with the target state and employer. | Check the fees and time required by the specific license program. | A U.S. certificate cannot be used to automatically obtain a Chinese work permit. |
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| Special equipment welding qualification (mainland China) | People who actually perform applicable special equipment welding processes | Check the qualification items, validity period, and the range of methods, materials, and positions. | It depends on the equipment and the process; it is not a uniform certificate for all auxiliary assembly. | TSG Z6002—2026 is effective from 2026-08-01; see the administration's notice for the transition of existing certificates. | The specific training, assessment, and review requirements must be checked separately. | Those who already hold a valid welding certificate but no welding and thermal cutting operation certificate must take a hot work assessment under the new detailed rules at review or when new items are added. |
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| Special operations certificate (mainland China) | People who actually perform the applicable special operations listed in the catalog | They must complete dedicated training and assessment and hold an operation certificate before working. | It follows the operations catalog and departmental rules, and is not generalized to all boiler positions. | Order No. 19 of the Ministry of Emergency Management took effect on 2026-06-01; where other departments have other provisions, those provisions apply. | The certificate is valid for 6 years, and you renew it as required when it expires. | The specific arrangements for certificates across departments are set separately, and neither automatic mutual recognition nor a blanket requirement to obtain both certificates is promised. |
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| Unit licensing, notification, and supervisory inspection (mainland China) | Applicable equipment production and construction units | Production licensing, and written notification before installation, alteration, or repair work; the statutory scope undergoes supervisory inspection. | An obligation of the unit and the process, not an individual education threshold. | Articles 18, 20, and 23—25 of the Special Equipment Safety Law should be checked against the equipment and the process. | Costs of materials, inspection, and document handover. | Supervisory inspection covers the listed manufacturing, installation, alteration, and major repair processes; the design appraisal in Article 20 cannot be generalized to all vessels. |
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| Three related NCCER assessments (United States) | People who intend to demonstrate pressure vessel, maintenance, or heat exchanger skills | A third-party knowledge assessment with optional accompanying practical verification | Not a statutory license for all manufacturing workers; verify with the employer | 2024-11 specifications: all are 2-hour closed-book, minimum 75; Pressure Vessel93 questions, Maintenance71 questions, Exchanger25 questions. The heat exchanger qualification requires passing both the maintenance and the heat exchanger assessments. | According to the directory Q&A, the three assessments must be retaken every 5 years for recertification; the specific eligibility thresholds, fees, and current recertification rules must be checked with the center, and the evidence is insufficient. | Passing the knowledge assessment does not authorize all actual processes; practical verification is listed separately, and it is not the same as a National Board inspector. |
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| National Board inspector commission (United States) | People who also plan to enter authorized or in-service inspection positions | IS is used for installation and in-service inspection; AI is used for ASME code authorized inspection | An inspection career path, not a uniform entry certificate for manufacturing workers | The issuing body requires education, experience, employment, and examination conditions; the card is renewed each year. The old O*NET New Construction title must be verified against the current AI. | The catalog lists a requirement of more than two years of post-high-school education or training plus experience and an examination, and recertification involves CEU or CPD; the specific qualification credit branches, fees, and contact hours have not been verified. | The full set of conditions in the directory Q&A cannot be treated as a fixed formula for every qualification branch, and certainly cannot be turned into a Chinese inspection qualification. |
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The paper exercises on this page check only dimensions and records; later practical work must be organized by a formal institution and meet the qualification, safety, and authorization conditions of the specific process.
Readiness evidence：Complete installation, pressure test cooperation, and handover records.
Credential boundary：Has on-site work organization skills and an understanding of technical specifications.
Next moves：Responsible for work quality and safety conditions.
Typical scope：Review work plans, organize safety briefings, and train on-site personnel.
Readiness evidence：Plan review and safety briefing records.
Credential boundary：Has plan review and mentoring capabilities.
Next moves：Responsible for on-site safety and record standards.
Credential boundary：Master multiple methods and understand process qualification.
Next moves：Responsible for weld quality and process coordination.
Typical scope：Organize process qualification, review welding plans, and train welders.
Readiness evidence：Process qualification and training records.
Credential boundary：Has review and development qualifications.
Next moves：Responsible for welding processes and personnel training.
Limitations：Editorial ratings use the existing occupational responsibilities and AI task analysis on this page. They are not adoption rates, measured effects, job-disappearance or personal-unemployment probabilities, or official scores from Stanford or another external institution. No measured time weights or future robot deployment are assumed.
