NAICS UNIVERSITY · Free research for insurance agents
Metal Heat Treating
NAICS 332811 · United States · 2022 edition
This U.S. industry comprises establishments primarily engaged in heat treating, such as annealing, tempering, and brazing, and cryogenically treating metals and metal products for the trade.
Activities described by this code
Other activities to examine
Census classification reference
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Compare another operationInsurance operations research — draft
Metal heat treating shops process customer-supplied metal parts and components using high-temperature furnaces and controlled atmospheres to alter material properties — hardening, annealing, tempering, stress relieving, brazing, and cryogenic treating. Work is performed for the trade, meaning parts belong to the customer and are returned after processing. Facilities typically operate large gas or electric furnaces, quench tanks, and atmosphere-control equipment.
Questions to investigate
- What end-use industries are served — general manufacturing, automotive, aerospace, defense, medical?
- What is the average value of customer-owned materials on premises at any given time?
- What type of furnace atmospheres are used — are flammable gases such as hydrogen or endothermic atmospheres present?
- Does the operation hold any quality certifications such as NADCAP, ISO, or automotive-specific process approvals?
This insurance research was generated in April 2026. It has not received a complete human review. The October 12, 2026 audit checked codes and titles only, not descriptions or coverage assertions.