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SAE M8

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.80  0.85
Si 0.20  0.40
Mn 0.10  0.40
Cr 4.00  4.50
Mo 4.30  4.70
V 1.35  1.65
W 5.25  5.75
Nb   1.25