Brief introduction of 42CrMo4 steel plate

42CrMo4 steel plate has high hardenability, good toughness and durable strength. 42CrMo4 steel is an improved variety of American Standard AISI standard 4140 steel. 42CrMo4 steel plate has good machinability, easy to polish, easy to bite, and can be electroplated.

42CrMo4 steel plate executive standard: EN 10083/3.

42CrMo4 steel plate chemical elements and finished melting analysis:

C	Si	Mn	S	P	Cr	Mo
0.38-0.45	≤0.40	0.60-0.90	Allowable residual content≤0.035	Allowable residual content≤0.035	0.90-1.20	0.15-0.30

Mechanical properties of 42CrMo4 steel plate:

Tensile strength σb (MPa)	Yield strength σs (MPa)	Elongation δ5 (%)	Area shrinkage ψ (%)	Impact energy Akv (J)	Impact toughness value αkv (J/cm²)
≥1080(110)	≥930(95)	≥12	≥45	≥63	≥78(8)

42CrMo4 steel plate characteristics: 42CrMo4 has high strength, hardenability, good toughness, small deformation during quenching, and high creep strength and lasting strength at high temperature.