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ASTM M7

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Mo(％) V(%) W(%)
0.97～1.05 0.20～0.55 0.15～0.40 ≤0.030 ≤0.030 3.50～4.00 8.20～9.20 1.75～2.25 1.40～2.10

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