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Home / All Jobs / Trades / Heat Treating Equipment Setters, Operators, and Tenders, Metal and Plastic
Heat Treating Equipment Setters, Operators, and Tenders, Metal and Plastic
These workers run furnaces, induction machines, and quench baths to harden or soften metal and plastic parts to exact specs. The work is hands-on and temperature-sensitive: a small mistake in heat, timing, or cooling can ruin a batch, so the job rewards close attention but offers little room for error. It is also a physically demanding shop-floor role, and the long-term outlook is weak because employment is projected to decline.
Also known as Heat Treat OperatorHeat Treating OperatorFurnace OperatorHeat Treat TechnicianHeat Treating Technician
Median Salary
$47,450
Mean $49,030
U.S. Workforce
~15K
1.2K openings per year
10-Year Growth
+-12.8%
14.8K to 12.9K
Entry Education
High school diploma or equivalent
+ None experience
What This Role Looks Like in Practice
Heat Treating Equipment Setters, Operators, and Tenders, Metal and Plastic sits in the Trades category. In practical terms, this role combines day-to-day execution, cross-team coordination, and consistent decision-making under real business constraints.
U.S. employment is currently about ~15K workers, with a median annual pay of $47,450 and roughly 1.2K openings each year. Based on BLS projections, total employment is expected to decline from 14.8 K in 2024 to 12.9K in 2034.
Most hiring paths start with High school diploma or GED, and employers typically expect none of related experience. Many careers in this track begin around Entry-level helper and can progress toward Lead heat treat operator or shift lead. High-value skills usually include Operation and Control, Operations Monitoring, and Pyrometers, Thermocouples & Temperature Charts, paired with soft skills such as Attention to detail, Communication, and Problem-solving.
Core Responsibilities
- Load parts into furnaces or move them through equipment, then take them out when the heat cycle is finished.
- Set the right temperature, timing, gas flow, and flame settings for each batch of parts.
- Watch gauges, charts, and the color of the metal to make sure the process stays within spec.
- Cool or harden parts in water, oil, brine, or air after they finish heating.
Keep exploring: more Trades careers or browse all job titles.
A Day in the Life
01 Load parts into furnaces or move them through equipment, then take them out when the heat cycle is finished.
02 Set the right temperature, timing, gas flow, and flame settings for each batch of parts.
03 Watch gauges, charts, and the color of the metal to make sure the process stays within spec.
04 Cool or harden parts in water, oil, brine, or air after they finish heating.
05 Write down when each batch went in and came out, along with the settings used for the run.
06 Check furnaces, burners, and other heating equipment for signs of wear, trouble, or unsafe operation.
Industries That Hire
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Aerospace & Defense
Boeing, Lockheed Martin, RTX
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Industrial Equipment
Caterpillar, John Deere, Siemens
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Metal & Primary Metals
Nucor, Cleveland-Cliffs, Alcoa
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Medical Device Manufacturing
Medtronic, Stryker, Johnson & Johnson
Pros and Cons
Advantages
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You can enter the field with a high school diploma, and 69.85% of workers do; BLS also says no prior work experience is needed.
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Pay is solid for a role without a degree, with median annual wages of $47,450 and mean wages of $49,030.
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The standard training period is moderate-term on-the-job training, so you can build skills without spending years in school.
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There are still about 1.2 thousand annual openings, so employers do hire even though the occupation is shrinking overall.
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You build practical manufacturing skills that transfer to other shop-floor jobs, including machine setup, process control, and quality checks.
Challenges
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The long-term outlook is poor: employment is projected to fall from 14.8 thousand in 2024 to 12.9 thousand in 2034, a drop of 12.8%.
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The work is physically demanding, with lots of lifting, loading, and moving hot or heavy parts around furnaces and quench tanks.
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Safety risks are part of the job because you work around extreme heat, gas burners, and cooling fluids that can burn or splash.
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Remote work is essentially not an option, since the job has to be done beside the equipment on the production floor.
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There is a real ceiling on advancement in many plants, and automation and tighter process controls can reduce the need for as many operators over time.
Career Progression
Entry-level helper
0-1 years
$32K-$37K
You learn the basics by loading parts, keeping the area organized, and helping operators with routine shop tasks.
Heat treating machine operator
1-3 years
$38K-$46K
You begin running simple cycles, checking settings, and handling parts under supervision.
Heat treating equipment setter, operator, and tender THIS ROLE
3-7 years
$47K-$58K
You set furnace conditions, track time and temperature closely, and handle a wider range of materials and cycles.
Lead heat treat operator or shift lead
7-12 years
$59K-$72K
You oversee production on a shift, troubleshoot problems, and help train newer workers on safe, correct procedures.
Education Paths
High school diploma or GED
This is the most common entry point, held by 69.85% of workers in the role.
Post-secondary certificate in industrial maintenance or heat treating
A certificate can help you stand out for shop-floor jobs, and 9.81% of workers in the role have a post-secondary certificate.
On-the-job training with an employer
BLS says the typical path is moderate-term on-the-job training, so many workers learn the exact machines and procedures after being hired.
Key Skills
Technical
Operation and Control 100%
Operations Monitoring 100%
Pyrometers, Thermocouples & Temperature Charts 92%
Heat Treat Furnaces, Induction Machines & Furnace Controls 90%
Quality Control Analysis 16%
Monitoring 16%
Equipment Maintenance 0%
Soft Skills
Attention to detailCommunicationProblem-solvingSafety awarenessTime managementPhysical stamina Job Outlook and Trends
+-12.8%
Projected growth (2024-2034)
1.2K
Annual job openings
Employment is projected to rise from 14.8K to 12.9 K over the next decade, representing -12.8% growth. Around 1.2 K openings per year include both newly created roles and replacement hiring from turnover.
Remote availability is currently Rare. Demand remains strongest where employers need practical domain knowledge plus modern workflow and data skills.