Machinery's Handbook, 31st Edition
490 Heat Treatment of Steel Table 5b. Typical Heat Treatments for SAE Alloy Steels (Directly Hardenable Grades) SAE No. Normalize, °F Anneal, °F Harden, °F Quench a Temper, °F 1330 { … … 1525-1575 B
1600-1700 and/or 1600-1700 and/or 1600-1700 and/or 1600-1700 and/or … … … 1600-1700 and/or 1600-1700 and/or 1600-1700
1500-1600 1525-1575 … 1500-1550 1500-1600 1525-1575 … 1450-1500 1400-1500 1450-1500 … 1425-1475 1400-1500 1425-1475 … 1500-1550 … 1500-1550 1450-1550 1500-1550 … 1500-1550 1400-1500 1500-1550 1525-1575 1500-1575 1450-1550 1500-1575 1450-1550 1475-1550 1450-1550 1600-1650 1450-1550 1550-1600 1450-1550 1500-1600 1450-1550 1450-1500 1450-1500 1450-1500 1450-1550 1475-1500 1450-1550 1500-1550 1450-1550 1500-1550 1450-1550 1475-1550
B E E E E E E B E E E E
1335 & 1340 {
2330
{
{ To desired hardness
2340 & 2345 {
3130
… … … … …
3135 to 3141 { 3145 & 3150 {
Gears, 350-450 To desired hardness
4037 & 4042 4047 & 4053 4063 & 4068 4137 & 4140 4145 & 4150 4130
E {
E E B E E E E E E G
1600-1700 and/or 1600-1700 and/or 1600-1700 and/or { 1600-1700 and/or 1600-1700 and/or 1600-1700 and/or 1650-1750 and/or 1650-1750 and/or 1650-1750 and/or
(
To desired hardness
4340 4640
1600-1700 and draw 1100-1225 1475-1525
To desired hardness Gears, 350-450 To desired hardness 250-300
5045 & 5046 5130 & 5132 5135 to 5145 5147 to 5152
E { To desired hardness Gears, 350-400 E { To desired hardness Gears, 350-400
50100 51100 52100 6150
… …
1350-1450 1350-1450
1425-1475 1500-1600
H E E E B E E E E E E E E
} {
To desired hardness
1650-1750 and/or 1600-1700 and/or 1600-1700 and/or … 1600-1700 and/or 1650-1750 and/or 1600-1700 and/or 1600-1700 and/or 1600-1700 and/or 1600-1700 and/or 1600-1700 and/or 1600-1700 and/or
1550-1650 1600-1650 … 1500-1650 1450-1550 1550-1650 1450-1550 1525-1575 1450-1550 1500-1550 1450-1550 1475-1550 1450-1550 1525-1575 1450-1500 1500-1550 1450-1550 1550-1600 1450-1550 1500-1600 1450-1550 1500-1550 1450-1550 1500-1550
9254 to 9262 8627 to 8632 8635 to 8641 8642 to 8653 8655 & 8660 8735 & 8740 8745 & 8750 9437 & 9440 9442 to 9747 9845 & 9850 9840
{ To desired hardness
E a Symbols: B = water or oil; E = oil; G = water, caustic solution, or oil; H = water.
Table 5c. Typical Heat Treatments for SAE Alloy Steels (Heat-Treating Grades—Chromium–Nickel Austenitic Steels)
Anneal, a
Harden ° F ( ° C)
SAE No.
Quenching Medium
Normalize
Temper
Deg. F
Deg. C
30301 to 30347 }
… 1800–2100 982–1149 … a Quench to produce full austenitic structure using water or air in accordance with thickness of section. Annealing temperatures given cover process and full annealing as used by industry, the lower end of the range being used for process annealing. … Water or Air
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