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ASTM H22

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(％) Si(％) Mn(％) P(％) S(％) Cr(％) V(%) W(%)
0.30～0.40 0.15～0.40 0.15～0.40 ≤0.030 ≤0.030 1.75～3.75 0.25～0.50 10.0～11.75

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