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GBT NS143

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) Cu(%) Nb(%)
Max 0.07 Max 1.00 Max 2.00 Max 0.030 Max 0.030 19.0-21.0 32.0-38.0 2.0-3.0 3.0-4.0 8XC-1.00