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Alloy Steel Heat Treating Normalizing, Annealing Temperature Table Chart
Engineering Materials
Applications & Design
The following are Hardenable Grades of Alloy Steel and the perspective normalizing temperature, annealing temperature and quenching medium table chart.
|
SAE
Steels1 |
Normalizing2
Temp F |
Annealing4
Temp F |
Hardening5
Temp F |
Quenching
Medium |
Temper
|
|
1330
|
1600-1700
|
1550-1650
|
1525-1575
|
Water or Oil
|
To desired hardness
|
|
1335
|
1600-1700
|
1550-1650
|
1500-1550
|
Oil
|
To desired hardness
|
|
1340
|
1600-1700
|
1550-1650
|
1500-1550
|
Oil
|
To desired hardness
|
|
1345
|
1600-1700
|
1550-1650
|
1500-1550
|
Oil
|
To desired hardness
|
|
4037
|
-
|
1500-1575
|
1525-1575
|
Oil
|
To desired hardness
|
|
4042
|
-
|
1500-1575
|
1525-1575
|
Oil
|
To desired hardness
|
|
4047
|
-
|
1450-1550
|
1500-1575
|
Oil
|
To desired hardness
|
|
4130
|
1600-1700
|
1450-1550
|
1500-1600
|
Water or Oil
|
To desired hardness
|
|
4135
|
-
|
1450-1550
|
1550-1600
|
Oil
|
To desired hardness
|
|
4137
|
-
|
1450-1550
|
1550-1600
|
Oil
|
To desired hardness
|
|
4140
|
-
|
1450-1550
|
1550-1600
|
Oil
|
To desired hardness
|
|
4142
|
-
|
1450-1550
|
1550-1600
|
Oil
|
To desired hardness
|
|
4145
|
-
|
1450-1550
|
1500-1550
|
Oil
|
To desired hardness
|
|
4147
|
-
|
1450-1550
|
1500-1550
|
Oil
|
To desired hardness
|
|
4150
|
-
|
1450-1550
|
1500-1550
|
Oil
|
To desired hardness
|
|
4161
|
-
|
1450-1550
|
1500-1550
|
Oil
|
To desired hardness, 700 F, min
|
|
4340
|
1600-1700
|
1450-1550
|
1500-1550
|
Oil
|
To desired hardness
|
|
50B40
|
1600-1700
|
1500-1600
|
1500-1550
|
Oil
|
To desired hardness
|
|
50B44
|
1600-1700
|
1500-1600
|
1500-1550
|
Oil
|
To desired hardness
|
|
5046
|
1600-1700
|
1500-1600
|
1500-1550
|
Oil
|
To desired hardness
|
|
50B46
|
1600-1700
|
1500-1600
|
1500-1550
|
Oil
|
To desired hardness
|
|
50B50
|
1600-1700
|
1500-1600
|
1475-1550
|
Oil
|
To desired hardness
|
|
5060
|
1600-1700
|
1500-1600
|
1475-1550
|
Oil
|
To desired hardness
|
|
50B60
|
1600-1700
|
1500-1600
|
1475-1550
|
Oil
|
To desired hardness
|
|
5130
|
1600-1700
|
1450-1550
|
1525-1575
|
Water, Caustic Solution, or Oil
|
To desired hardness
|
|
5132
|
1600-1700
|
1450-1550
|
1525-1575
|
Water, Caustic Solution, or Oil
|
To desired hardness
|
|
5135
|
1600-1700
|
1500-1600
|
1500-1550
|
Oil
|
To desired hardness
|
|
5140
|
1600-1700
|
1500-1600
|
1500-1550
|
Oil
|
To desired hardness
|
|
5147
|
1600-1700
|
1500-1600
|
1475-1550
|
Oil
|
To desired hardness
|
|
5150
|
1600-1700
|
1500-1600
|
1475-1550
|
Oil
|
To desired hardness
|
|
5155
|
1600-1700
|
1500-1600
|
1475-1550
|
Oil
|
To desired hardness
|
|
5160
|
1600-1700
|
1500-1600
|
1475-1550
|
Oil
|
To desired hardness
|
|
51B60
|
1600-1700
|
1500-1600
|
1475-1550
|
Oil
|
To desired hardness
|
|
50100
|
-
|
1350-1450
|
1425-1475
|
Water
|
To desired hardness
|
|
51100
|
-
|
1350-1450
|
1500-1600
|
Oil
|
To desired hardness
|
|
52100
|
-
|
1350-1450
|
|
|
To desired hardness
|
|
6150
|
-
|
1550-1650
|
1550-1625
|
Oil
|
To desired hardness
|
|
61B45
|
1600-1700
|
1550-1650
|
1500-1575
|
Oil
|
To desired hardness
|
|
8630
|
1600-1700
|
1450-1550
|
1525-1600
|
Water or Oil
|
To desired hardness
|
|
8637
|
-
|
1500-1600
|
1525-1575
|
Oil
|
To desired hardness
|
|
8640
|
-
|
1500-1600
|
1525-1575
|
Oil
|
To desired hardness
|
|
8642
|
-
|
1500-1600
|
1500-1575
|
Oil
|
To desired hardness
|
|
8645
|
-
|
1500-1600
|
1500-1575
|
Oil
|
To desired hardness
|
|
86B45
|
-
|
1500-1600
|
1500-1575
|
Oil
|
To desired hardness
|
|
8650
|
-
|
1500-1600
|
1500-1575
|
Oil
|
To desired hardness
|
|
8655
|
-
|
1500-1600
|
1475-1550
|
Oil
|
To desired hardness
|
|
8660
|
-
|
1500-1600
|
1475-1550
|
Oil
|
To desired hardness
|
|
8740
|
-
|
1500-1600
|
1525-1575
|
Oil
|
To desired hardness
|
|
9254
|
-
|
-
|
1500-1650
|
Oil
|
To desired hardness
|
|
9260
|
-
|
-
|
1500-1650
|
Oil
|
To desired hardness
|
|
94B30
|
1600-1700
|
1450-1550
|
1550-1625
|
Oil
|
To desired hardness
|
- These steels are fine grain unless otherwise specified.
- These steels should be either normalized or annealed for optimum machinability.
- Temper at 110-1225.
- The specific annealing cycle is dependent upon the alloy content of the steel, the type of subsequent machining operations and desired surface finish.
- Frequently, these steels, with the exception of 4340, 50100, 51100, and 52100, are hardened and tempered to a final machinable hardness without preliminary heat treatment.
Related Resources:
- Carbon Steel Typical Heat Treatments
- Heat Treating Aluminum Alloys
- Heat Treatment - Annealing
- Heat Treatment Review
- Heat Treating Terms Definitions # 1
- Heat Treating Terms Definitions #2
- Induction Hardening Review
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