2017 NAICS Definition

T = Canadian, Mexican, and United States industries are comparable.

332811 Metal Heat Treating

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.

Cross-References.

• Establishments primarily engaged in both fabricating and heat treating metal products are classified in the Manufacturing sector according to the product made.

2007 NAICS		2012 NAICS		2017 NAICS		Corresponding Index Entries
332811		332811		332811		Annealing metals and metal products for the trade
332811		332811		332811		Brazing (i.e., hardening) metals and metal products for the trade
332811		332811		332811		Burning metals and metal products for the trade
332811		332811		332811		Cold treating metals for the trade
332811		332811		332811		Cryogenic treating metals for the trade
332811		332811		332811		Hardening (i.e., heat treating) metals and metal products for the trade
332811		332811		332811		Heat treating metals and metal products for the trade
332811		332811		332811		Shot peening metal and metal products for the trade
332811		332811		332811		Tempering metals and metal products for the trade