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GBT A70204

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(％) Si(％) Mn(％) P(％) S(％) Cr(％) B(%) Al(%)
0.17-0.24 Max 0.40 0.50-0.80 0.035 0.035 — 0.0005-0.0035 0.02

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