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Heat Treating Stainless Steels Table Chart
Engineering Materials
Applications & Design
Stainless steels are heat-treated based on the stainless steel type and the target end item requirements. Heat treatment methods, such as stress relieving, hardening and annealing, strengthen the ductility and corrosion resistance properties of the metal that is modified during fabrication, or generate hard structures capable of tolerating abrasion and high mechanical stresses.
Heat Treating Stainless Steels Table Chart
|
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SAE Steels
|
AISI
|
Treatment
|
Normalizing
Temp F
|
Subcritical Annealing
Temp F
|
Full Annealing1
Temp F
|
Hardening
Temp F
|
Quenching
Medium
|
Temper
|
S40900
|
409
|
1
|
-
|
-
|
1550-1650
|
-
|
Air
|
-
|
S41000
|
410
|
1
|
-
|
1300-13502
|
1550-1650
|
-
|
Oil or Air
|
To desired hardness
|
|
|
2
|
-
|
-
|
|
1750-1850
|
|
|
S41400
|
414
|
1
|
-
|
1200-12502
|
-
|
-
|
Oil or Air
|
To desired hardness
|
|
|
2
|
-
|
-
|
|
1750-1850
|
|
|
S41600
|
416
|
1
|
-
|
1300-13502
|
1550-1650
|
-
|
Oil or Air
|
To desired hardness
|
|
|
2
|
-
|
-
|
|
1750-1850
|
|
|
S42000
|
420
|
1
|
-
|
1350-14502
|
1550-1650
|
-
|
Oil or Air
|
To desired hardness
|
|
|
2
|
-
|
-
|
|
1800-1850
|
|
|
S42020
|
420F
|
1
|
-
|
1350-14502
|
1550-1650
|
-
|
Oil or Air
|
To desired hardness
|
|
|
2
|
-
|
-
|
|
1800-1850
|
|
|
S43000
|
430
|
1
|
-
|
1400-15004
|
-
|
-
|
-
|
-
|
S43020
|
430F
|
1
|
-
|
1250-15004
|
-
|
-
|
-
|
-
|
S43100
|
431
|
1
|
-
|
1150-12252
|
-
|
1800-1900
|
Oil or Air
|
To desired hardness
|
S43400
|
434
|
|
|
|
|
|
|
|
S43600
|
436
|
1
|
-
|
1400-15004
|
-
|
-
|
-
|
-
|
S44002
|
440A
|
|
|
|
|
|
|
|
S44003
|
440B
|
|
|
|
|
|
|
|
S44004
|
440C3
|
|
-
|
1350-14402
|
1550-1650
|
1850-1950
|
Oil or Air
|
To desired hardness
|
S44200
|
442
|
1
|
-
|
1440-15004
|
-
|
-
|
-
|
-
|
S44600
|
446
|
1
|
-
|
1500-16502
|
-
|
-
|
-
|
-
|
51501
|
501
|
|
-
|
1325-13754
|
1525-1600
|
1600-1700
|
Oil or Air
|
To desired hardness
|
- Cool slowly in furnace.
- Usually air-cooled but may be furnace cooled.
- Suffixes A, B, and C denote three types of steel differing only in carbon content. Suffix F denotes a free machining steel
- Cool rapidly in air.
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