Basic information of 42CrMo4 alloy structural steel plate

Grade: 42CrMo4
Product name: alloy structural steel plate
Executive standard: EN10083-3.
Delivery status: controlled rolling or quenching+tempering.

Chemical composition of 42CrMo4 alloy structural steel plate:
Carbon C: 0.38-0.45
Silicon Si: ≤ 0.40
Manganese Mn: 0.60-0.90
Sulfur S: allowable residual content ≤ 0.035
Phosphorus P: allowable residual content ≤ 0.035
Chromium Cr: 0.90-1.20
Mo: 0.15-0.30

42CrMo4 alloy structural steel equivalent grades:
China GB 42CrMo
Russia Г OCT 38XM
American AISI 4140/4142
British BS 708M40/708A42/709M40
France NF 40CD4/42CD4
Germany DIN 41CrMo4/42CrMo4

Heat treatment of 42CrMo4 steel:
42CrMo4 steel can be annealed, quenched and forged.

Features of 42CrMo4 alloy structural steel plate:
42CrMo4 steel has high strength and hardenability, good toughness, small deformation during quenching, and high creep strength and rupture strength at high temperature. 42CrMo4 steel is an improved variety of American AISI standard 4140 steel. It has good machinability, is easy to polish, is easy to bite, and can be electroplated.