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STC4

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%)
0.90-1.00 ≤0.35 ≤0.50 ≤0.030 ≤0.030 ≤0.20 ≤0.25 ≤0.30