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ASTM H24

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.42  0.53
Si 0.15  0.40
Mn 0.15  0.40
P   0.030
S   0.030
Cr 2.50  3.50
Mo  
V 0.40  0.60
W 14.00  16.00
Ni+Cu   0.75