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ГОСТ XH51BMTЮKΦP(ЭП220)

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) V(%) W(%) Co(%) B(%) Al(%) Ti(%)
Max 0.08 Max 0.50 Max 0.50 Max 0.015 Max 0.009 9.0-12.0 Balance 5.0-8.0 0.2-0.8 5.0-7.0 14.0-16.0 Max 0.02 3.9-4.8 2.2-2.9