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ASTM T1

Chemical composition(mass fraction)(wt.%)

Chemical composition(mass fraction)(wt.%)
C(%) Si(%) Mn(%) P(%) S(%) Cr(%) V(%) W(%)
0.65~0.80 0.20~0.40 0.10~0.40 ≤0.030 ≤0.030 3.75~4.50 0.90~1.30 17.25~18.75