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GBT K418

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) B(%) Nb(%) Al(%) Ti(%) Other(%)
0.09-0.14 Max 0.5 Max 0.5 Max 0.015 Max 0.015 11.5-13.5 Balance 3.80-4.80 0.006-0.020 1.80-2.50 5.50-6.40 0.50-1.00 Zr :0.06-0.15