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ASTM S7

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Mo(％) V(%)
0.45～0.55 0.20～1.00 0.20～0.90 ≤0.030 ≤0.030 3.00～3.50 1.30～1.80 ≤0.35

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