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GB 27SiMn

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.24  0.32
Si 1.10  1.40
Mn 1.10  1.40
P   0.035
S   0.035
Cu   0.30
Cr   0.30
Ni   0.30
Mo   0.15