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GBT Q620

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) B(%)
Max 0.18 Max 0.55 1.00-1.60 0.025 0.025 Max 0.80 Max 1.20 Max 0.60 Max 0.003

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