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ASTM S6

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.40  0.50
Si 2.00  2.50
Mn 1.20  1.50
P   0.030
S   0.030
Cr 1.20  1.50
Mo 0.30  0.50
V 0.20  0.40
W  
Ni+Cu   0.75