Heat Treating

The chart below shows our high speed steel heat treating process for all of our different grades of steel. Click on the individual grade for a complete data sheet of each of our high speed steels.

 AnnealingPreheatAustienitizingQuenchTempering
TempTempTempMediumTemp
°F°F°F°F
M21550/16001500/15502175/2225Salt/Oil/Atm1025/1050
M31550/16001500/15502185/2210Salt/Oil/Atm1025/1050
M41550/16001500/15502175/2225Salt/Oil/Atm1025/1050
M71550/16001550/16002175/2220Salt/Oil/Atm1025/1050
M421575/16501500/15502125/2175Salt/Oil/Atm1025/1050
PM M41550/16001500/15502175/2220Salt/Oil/Atm1025/1050
PM T151550/16001500/15502200/2250Salt/Oil/Atm1025/1050
PM M481550/16001500/15502150/2175Salt/Oil/Atm1080
PM 231575/16251550/16002125/2175Salt/Oil/Atm1040
PM 301575/16251500/15502125/2175Salt/Oil/Atm1040
PM 601575/16251500/15502125/2175Salt/Oil/Atm1040
PM A1116001500/15501850/2150Salt/Oil/Atm1040
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