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.

Including:

• Annealing metals and metal products for the trade
• Brazing (i.e., hardening) metals and metal products for the trade
• Burning metals and metal products for the trade
• Cold treating metals for the trade
• Cryogenic treating metals for the trade
• Hardening (i.e., heat treating) metals and metal products for the trade
• Heat treating metals and metal products for the trade
• Shot peening metal and metal products for the trade
• Tempering metals and metal products for the trade