SIC Industry Description

Industry: 3398—Metal Heat Treating
Establishments primarily engaged in heat treating of metal for the trade.

Annealing of metal for the tradeHeat treating of metal for the trade
Brazing (hardening) metal for the tradeShot peening—treating steel to reduce fatigue
Burning metal for the tradeStainless steel, brazing (hardening) for the trade
Hardening of metal for the tradeTempering of metal for the trade
Codes Titles Total Marketable US Businesses
3398Metal Heat Treating780
339800Metal heat treating620
33980000Metal heat treating620
339899Metal heat treating, nec160
33989901Annealing of metal29
33989902Brazing (hardening) of metal61
33989903Metal burning6
33989904Shot peening (treating steel to reduce fatigue)53
33989905Tempering of metal11