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AISI ICI 4340

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) W(%) Cu(%)
0.35-0.45 0.20-0.80 0.70-1.00 Max 0.04 Max 0.045 0.70-0.90 1.65-2.00 0.20-0.30 Max 0.10 Max 0.50