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AS 4140

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(％) Si(％) Mn(％) P(％) Cr(％) Mo(％)
0.38-0.43 0.10-0.35 0.75-1.00 0.040 0.040 0.80-1.10 0.15-0.25

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