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ASTM A3

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 1.20  1.30
Si 0.10  0.50
Mn 0.40  0.60
P   0.030
S   0.030
Cr 4.75  5.50
Mo 0.90  1.40
V 0.80  1.40
W  
Ni+Cu   0.75