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GBT K417

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) V(%) Co(%) B(%) Al(%) Ti(%) Other(%)
0.13-0.22 Max 0.5 Max 0.5 Max 0.015 Max 0.01 8.50-9.50 Balance 2.50-3.50 0.60-0.90 14.0-16.0 0.012-0.022 4.80-5.70 4.50-5.00 Zr :0.05-0.09