Independent guidance. Clear sources. A more informed next step.How we use the data ↗

Career profile · 51-4191

Heat Treating Equipment Setters, Operators, and Tenders, Metal and Plastic

Set up, operate, or tend heating equipment, such as heat-treating furnaces, flame-hardening machines, induction machines, soaking pits, or vacuum equipment to temper, harden, anneal, or heat treat metal or plastic objects.

What the work can involve

  • Read production schedules and work orders to determine processing sequences, furnace temperatures, and heat cycle requirements for objects to be heat-treated.
  • Record times that parts are removed from furnaces to document that objects have attained specified temperatures for specified times.
  • Adjust controls to maintain temperatures and heating times, using thermal instruments and charts, dials and gauges of furnaces, and color of stock in furnaces to make setting determinations.
  • Start conveyors and open furnace doors to load stock, or signal crane operators to uncover soaking pits and lower ingots into them.
  • Set up and operate or tend machines, such as furnaces, baths, flame-hardening machines, and electronic induction machines, that harden, anneal, and heat-treat metal.
  • Remove parts from furnaces after specified times, and air dry or cool parts in water, oil brine, or other baths.

Selected core tasks from O*NET 31.0. Responsibilities vary by employer, specialization and experience.

Preparation and entry routes

O*NET Job Zone 2: Some preparation

This broad O*NET group commonly involves some prior preparation and on-the-job learning. Check the specific employer, occupational credential and state requirements.

Check the route for the specific occupation where you plan to work. Education, employer experience requirements, occupational licensing and industry certification can be separate steps.

Understand the different credentials →

Skills used in this occupation

  • Active Listening
  • Monitoring
  • Speaking
  • Critical Thinking
  • Mathematics

Selected from the highest importance ratings available in O*NET 31.0. These describe the occupation, not a particular school's curriculum.

Knowledge to build

  • Production and Processing
  • Mathematics
  • Education and Training
  • Administration and Management
  • Chemistry

Selected from the highest importance ratings available in O*NET 31.0. These describe the occupation, not a particular school's curriculum.

Common work activities

  • Handling and Moving Objects
  • Controlling Machines and Processes
  • Performing General Physical Activities
  • Identifying Objects, Actions, and Events
  • Operating Vehicles, Mechanized Devices, or Equipment

Selected from the highest importance ratings available in O*NET 31.0. These describe the occupation, not a particular school's curriculum.

Training subjects to investigate

The federal education-to-occupation crosswalk connects this role to the subjects below. These links do not endorse a school or guarantee that any particular award qualifies a graduate for the job.

Working conditions to consider

These are the most common published responses to selected O*NET work-setting questions. They describe occupation-level survey findings, not every employer or a particular job.

Work-setting questionMost common responseShare giving that response
Contact With OthersConstant contact with others49.1%07/2016 · sample 24
Exposed to ContaminantsEvery day66.7%07/2016 · sample 24
Exposed to Disease or InfectionsNever94.8%07/2016 · sample 24
Exposed to Hazardous ConditionsEvery day34.4%07/2016 · sample 24
Spend Time SittingLess than half the time69.3%07/2016 · sample 24
Spend Time StandingContinually or almost continually56.6%07/2016 · sample 24
Spend Time Using Your Hands to Handle, Control, or Feel Objects, Tools, or ControlsContinually or almost continually59.6%07/2016 · sample 24
Time PressureEvery day59.8%07/2016 · sample 24
Wear Common Protective or Safety Equipment such as Safety Shoes, Glasses, Gloves, Hearing Protection, Hard Hats, or Life JacketsEvery day89.5%07/2016 · sample 24
Work SchedulesRegular (established routine, set schedule)86.2%07/2016 · sample 24

O*NET 31.0 Work Context, selected topics. Only unsuppressed source responses with sample size at least 10 are shown. A most-common response need not be a majority. Sampling uncertainty applies; source dates vary. Ask employers about actual schedules, accessibility, protective equipment and working conditions.

Software used in the workplace

Use these O*NET examples to ask how a course builds practical digital skills. They are workplace examples, not a required shopping list or confirmation of a school’s curriculum.

  • Electronic mail software: Microsoft Outlook
  • Enterprise resource planning ERP software: SAP software
  • Office suite software: Microsoft Office software
  • Spreadsheet software: Microsoft Excel
  • Word processing software: Microsoft Word

Selected categories and examples from O*NET 31.0 Software Skills. Products and employer requirements change. These examples are not endorsements; check the complete official occupation profile.

Pay & employment outlook

Salary estimates for heat treating equipment setters, operators, and tenders, metal and plastic

National median annual wage$48,750May 2025 · existing wage and salary workers
National median hourly wage$23.44May 2025 · where BLS publishes hourly pay
Middle 50% of annual wages$40,660–$58,40025th–75th percentile · not an entry-level pay range
Estimated employment14,000May 2025 · excludes self-employed workers

The median divides workers into two equally sized groups by pay. It is not a starting salary, a school’s graduate outcome or a promise of employment. Lower percentiles are not automatically new graduates.

National outlook: 2025–2035

Projected employment change-9.5%14,400 to 13,000 jobs
Projected openings per year1,100Annual average · growth plus replacement needs
Typical education for entry
High school diploma or equivalent
Related work experience
None
Typical on-the-job training
Moderate-term on-the-job training

BLS national employment projections, 2025–2035. Openings include people leaving occupations or the labor force; these are not advertised vacancies. Education categories describe typical entry, not legal eligibility or a guarantee that any specific program is sufficient.

Compare wages across 37 state/DC estimates
May 2025 cross-industry wage estimates for Heat Treating Equipment Setters, Operators, and Tenders, Metal and Plastic
StateAnnual medianHourly medianEmployment
Alabama$46,920$22.56170
Arizona$50,660$24.36160
Arkansas$37,590$18.07200
California$50,150$24.11770
Colorado$58,300$28.03100
Connecticut$44,350$21.32320
Florida$47,370$22.77150
Georgia$44,050$21.18250
Illinois$45,340$21.80850
Indiana$46,860$22.53990
Iowa$49,760$23.93120
Kansas$47,500$22.8450
Kentucky$47,090$22.64340
Louisiana$35,180$16.92Not published
Maine$45,590$21.9240
Massachusetts$49,280$23.69250
Michigan$50,560$24.311,190
Minnesota$41,100$19.7690
Mississippi$46,630$22.4280
Missouri$47,980$23.07140
Nebraska$48,120$23.1450
New Hampshire$52,250$25.1290
New Jersey$49,640$23.86440
New York$52,940$25.45280
North Carolina$46,660$22.43320
Ohio$52,880$25.421,040
Oklahoma$51,680$24.85120
Oregon$60,280$28.98240
Pennsylvania$48,800$23.461,520
South Carolina$46,750$22.48290
Tennessee$54,930$26.41670
Texas$41,690$20.041,450
Utah$47,860$23.0190
Virginia$55,070$26.47190
Washington$61,990$29.80140
West Virginia$56,880$27.3570
Wisconsin$49,100$23.61470

Metropolitan and nonmetropolitan wages

Search the 91 published local-area estimates for this occupation. Metropolitan areas can cross state lines; a city’s postal name is not necessarily the statistical area’s name.

Sources: BLS May 2025 OEWS public downloads and 2025–2035 employment projections, retrieved September 9, 2026. Unpublished estimates stay unavailable. “+” means BLS’s upper reporting threshold ($239,200 annually or $115 hourly). Wages exclude self-employment and nonwage benefits. How to interpret these figures.

Compare the route and prepare for work

Questions to test the fit

  1. What does an entry-level working day look like, and how does it differ from the experienced role described here?
  2. Which tasks, work environments and schedules would I enjoy or find difficult?
  3. What education, supervised practice and credentials do local employers actually request?
  4. Can I speak with someone in the occupation or arrange a suitable workplace visit?
  5. How does the complete training cost compare with my realistic budget and available routes?
Use the career-change checklist →

Related occupations to compare

Related through shared training-subject mappings. Entry requirements can differ substantially.

Sources and attribution

This page includes information from the O*NET 31.0 Database by the U.S. Department of Labor, Employment and Training Administration (USDOL/ETA), used under CC BY 4.0. Trade School Guides selects and organizes the material and adds explanatory guidance. USDOL/ETA has not approved, endorsed or tested these modifications. Occupation code: 51-4191.00.

Training connections: CIP 2020–SOC 2018 crosswalk. Snapshot: September 8, 2026. See the methodology.