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ASTM A231

2020-04-09 18:36:12
     
Specification and Steel Grade : ASTM A231
Type : Alloy Steel
     
Main Chemical Compositions|(%) : C0.48~0.53,Cr0.80~1.10,V≥0.15
     
Strength of Extension|σb/MPa : 1310~2070
Elasticity Modulus|E/GPa : 210
Torsional Property|σb Min(%) : 45
Rigidity Modulus|G/GPa : 80
Hardness|HRC : 41~55
Working Temperature|/℃ : 220
Features and Use : CrV steel for spring by impact load and high temperature work.ASTMA232 used as valve spring
     
Remark:    
①, For helical compression  spring or tension spring, the distorting stress should be 75% of σb minimum.
②, It is the United States federal specification.
     
     


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