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GBT GH1139

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(％) Mn(％) Cr(％) Ni(％) B(%) Other(%)
Max 0.12 5.0-7.0 23.0-26.0 15.0-18.0 Max 0.01 Si:Max 1.0,N: 0.30-0.45

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