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CSN G639.90

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(％) Si(％) Mn(％) Cr(％) W(%) Co(%) Nb(%)
1.80-2.40 Max 0.50 Max 0.50 25.0- 30.0 10.0-15.0 45.0-55.0 WiCo

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