Machinery's Handbook, 31st Edition
488
Heat Treatment of Steel Table 4b. Typical Heat Treatments for SAE Carbon Steels (Heat-Treating Grades) SAE Number Normalize, Deg. F Anneal, Deg. F Harden, Deg. F Quench a Temper, Deg. F 1025 & 1030 … … 1575–1650 A
1033 to 1035
…
… … … … …
1525–1575 1525–1575 1525–1575 1525–1575 1525–1575 1475–1550 1475–1550 1475–1550 1475–1550 1450–1500 1450–1500 1450–1500 1500–1600 1525–1575 1500–1550 1500–1550 1475–1550 1475–1550 1475–1550 1475–1550
B B B B B E B E E A F E B B B E E B
1600–1700
1036
…
1600–1700
1038 to 1040
…
1041
1600–1700 and/or 1400–1500
1042 to 1050 1052 & 1055 1060 to 1074
1600–1700
…
1550–1650 and/or 1400–1500 1550–1650 and/or 1400–1500
To Desired Hardness
1078
…
1400–1500 a
1080 to 1090
1550–1650 and/or 1400–1500 a
E b
… …
1400–1500 a 1400–1500 a
1095
1132 & 1137 1138 & 1140
1600–1700 and/or 1400–1500
…
… …
1600–1700
…
1400–1500 1400–1500
1141 & 1144
1600–1700
…
… …
1145 to 1151
1600–1700 B a Slow cooling produces a spheroidal structure in these high-carbon steels that is sometimes required for machining purposes. b May be water- or brine-quenched by special techniques such as partial immersion or time- quenched; otherwise they are subject to quench cracking. Table 5a. Typical Heat Treatments for SAE Alloy Steels (Carburizing Grades)
Carburized
Reheat
Temper, d
Cycle Anneal b
SAE No.
Normalize a
Deg. F
Deg. C
Deg. F Deg. C
Deg. F Deg. C
… 1650–1700 899–927 E 1400–1450 e 760–788 e E 250–350 121–177 … 1650–1700 899–927 E 1475–1525 f 802–829 f E 250–350 121–177 … 1650–1700 899–927 C 1400–1450 e 760–788 e E 250–350 121–177 … 1650–1700 899–927 C 1500–1550 f 816–843 f E 250–350 121–177 yes 1650–1700 899–927 E 1375–1425 e 746–774 e E 250–350 121–177 yes 1650–1700 899–927 E 1450–1500 f 788–816 f E 250–350 121–177 yes 1650–1700 899–927 C 1375–1425 e 746–774 e E 250–350 121–177 yes 1650–1700 899–927 C 1475–1525 f 802–829 f E 250–350 121–177 … 1650–1700 899–927 E g … … … 250–350 121–177 … … … 250–350 121–177 … 1500–1650 h 816–899 h E … 1650–1700 899–927 C 1325–1375 e 718–746 e E 250–350 121–177 … 1650–1700 899–927 C 1425–1475 f 774–802 f E 250–350 121–177 … 1650–1700 899–927 E 1400–1450 e 760–788 e E 250–350 121–177 … 1650–1700 899–927 E 1475–1525 f 802–829 f E 250–350 121–177 … 1650–1700 899–927 C 1400–1450 e 760–788 e E 250–350 121–177 … 1650–1700 899–927 C 1500–1550 f 816–843 f E 250–350 121–177 yes 1650–1700 899–927 E g … … … 250–350 121–177 … … … 250–350 121–177 yes 1450–1650 h 788–899 h E
yes yes yes yes yes yes yes yes yes yes yes yes yes i yes i yes yes yes yes yes yes yes i yes i yes yes
1320
2317
2512 to 2517
3115 & 3120
… 1650–1700 899–927 E g
… … … 250–350 121–177 … … … 250–350 121–177
816–899 h E
…… 1500–1650 h
… 1650–1700 899–927 E 1400–1450 e 760–788 e E 250–350 121–177 … 1650–1700 899–927 C 1475–1500 f 802–816 f E 250–350 121–177
3310 & 3316 4017 to 4032 4119 & 4125
… … … 250–350 121–177 … … … 250–350 121–177
yes 1650–1700 899–927 E g … 1650–1700 899–927 E g
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