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ASTM O2

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Mo(%) V(%)
0.85~0.95 ≤0.50 1.40~1.80 ≤0.030 ≤0.030 ≤0.50 ≤0.30 ≤0.30