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ГОСТ XH50BMTKΦЮ(ЭП57)

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) V(%) W(%) Co(%) B(%) Al(%) Ti(%)
0.08-0.14 Max 0.50 Max 0.50 Max 0.015 Max 0.010 9.0-12.0 Balance 4.0-6.0 0.2-0.8 5.0-7.0 14.0-16.0 Max 0.02 3.7-4.7 2.0-2.8