431 Stainless Steel
About 431 Stainless Steel
431 is a Martensitic stainless steel known for its high strength and hardness, as well as moderate corrosion resistance.
431 is used in applications where high strength and moderate corrosion resistance are required, such as in valves, pumps, shafts, and various components in the chemical and food processing industries it is also often used in applications where resistance to wear and fatigue is important.
431 Stainless Steel Grades & Equivalents
- BS970 431S29
- EN57
- ISO3506-1 C3-80
- 1.4057
Typical chemical analysis
Typical mechanical properties
Tensile Strength
850-1000 N/mm2
0.2% Proof Stress
635 N/mm2 min
Elongation
11% min
Impacts
34 Joules min
Hardness
248-302 HBw
Reduction of Area
Nil
Stress Rupture
Nil
Other Remarks
Nil
Download metal data sheets
431 Stainless Steel Material Data Sheet
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