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GBT U21702

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Cu(%)
0.67-0.75 0.17-0.37 0.90-1.20 0.035 0.035 0.25 0.3 0.25

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