Description:
Belongs to ultra-high strength steel.
(Corresponding International Standards Organization brand: 42CrMo4; Japanese brand: SCM440; German brand: 42CrMo4 or 1.7225)
Chemical composition content:
C:0.38-0.45 Si:0.17-0.37 Mn:0.50-0.80 S:≤0.030 P:≤0.030 Cr:0.90-1.20 Mo:0.15-0.25