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ASTM D5

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 1.40  1.60
Si 0.10  0.60
Mn 0.20  0.60
P   0.030
S   0.030
Cr 11.00  13.00
Mo 0.70  1.20
V   1.00
W  
Ni+Cu   0.75
Co 2.50  3.50