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STAS/SR Rp2

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) V(%) Co(%)
0.75-0.83 Max 0.45 Max 0.40 0.030 0.030 3.60- 4.50 1.40-1.70 0.50 -0.80 17.5- 18.5 4.50-5.00