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GBT 55Si2MnB

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) B(%)
0.52-0.60 1.50-2.00 0.60-0.90 0.035 0.035 Max 0.35 Max 0.35 0.0005-0.004

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