Specification :

High quality structural alloy steel. It is mainly used for making various kinds of machinery, automobile, mining spare part.
Chemical Composition:
Grade Standard C Si Mn Cr Mo P
Sd
42CrMo GB 0.38-0.45 0.17-0.37 0.50-0.80 0.90-1.20 0.15-0.25 0.035
42CrMo4 NF 0.39-0.46 0.10-0.40 0.60-0.9 0 0.85-1.15 0.15-0.30 0.030
4140 AISI 0.38-0.43 0.15-0.35 0.75-1.00 0.80-1.1 0 0.15-0.25 0.035
0.040
1.7225 DIN 0.38-0.45 d0.40 0.60-0.90 0.90-1.20 0.15- 0.30 0.025
0.035
SCM440` JIS 0.38-0.43 0.15-0.35 0.60-0.90 0.90-1.20 0.15-0. 30 0.030
` Nid0.25