Recommended Heat Treatments for Various Grades of Steel

Helpful for race car, hot rod, and custom car builders.

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AISI or SAE NumberNormalizing TemperatureAnnealing TemperatureHardening TemperatureQuenching Medium
Degrees FDegrees FDegrees F
10301,625/1,7251,525/1,5751,550/1,600Water or brine
10401,600/1,7001,475/1,5251,500/1,550Water or brine
10501,550/1,6501,450/1,5001,475/1,525Water or brine
10601,500/1,6001,425/1,4751,450/1,500Water or brine
10701,500/1,6001,425/1,4751,450/1,500Water or brine
10801,475/1,5751,375/1,4251,400/1,450Water or brine
10901,475/1,5751,375/1,4251,400/1,450Water or brine
11321,625/1,7251,525/1,5751,550/1,600Water or brine
11401,600/1,7001,475/1,5251,500/1,550Water or brine
11511,550/1,6501,450/1,5001,475/1,525Water or brine
1330 1,600/1,700 1,500/1,550 1,525/1,575 Oil or water
1340 1,550/1,650 1,475/1,525 1,500/1,550 Oil or water
3140 1,550/1,650 1,475/1,525 1,475/1,525 Oil
4028 1,600/1,700 1,525/1,575 1,550/1,600 Oil or water
4042 1,550/1,650 1,475/1,525 1,500/1,550 Oil
4063 1,550/1,650 1,450/1,500 1,475/1,525 Oil
4130 1,600/1,700 1,525/1,575 1,550/1,600 Oil or water
4140 1,600/1,700 1,500/1,550 1,525/1,575 Oil
4150 1,600/1,700 1,475/1,525 1,500/1,550 Oil
4340 1,600/1,700 1,500/1,550 1,500/1,550 Oil
5046 1,600/1,700 1,475/1,525 1,500/1,550 Oil
5130 1,600/1,700 1,500/1,550 1,550/1,600 Oil or water
5145 1,600/1,700 1,475/1,525 1,525/1,575 Oil
5160 1,600/1,700 1,450/1,500 1,500/1,550 Oil
501001,600/1,700 1,400/1,450 1,450/1,500 Oil
511001,600/1,700 1,400/1,450 1,475/1,525 Oil
521001,600/1,700 1,400/1,450 1,500/1,550 Oil
6150 1,600/1,700 1,500/1,550 1,550/1,600 Oil
8630 1,600/1,700 1,500/1,550 1,525/1,575 Oil
8645 1,600/1,700 1,475/1,525 1,500/1,550 Oil
8660 1,600/1,700 1,450/1,500 1,475/1,525 Oil
8735 1,600/1,700 1,500/1,550 1,525/1,575 Oil
8742 1,600/1,700 1,500/1,550 1,525/1,575 Oil
9260 1,600/1,700 1,500/1,550 1,550/1,600 Oil
9840 1,600/1,700 1,475/1,525 1,500/1,550 Oil
9850 1,600/1,700 1,475/1,525 1,500/1,550 Oil

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