What material is 42CrMo4 steel plate?

42CrMo4 steel plate is an industrial material. 42CrMo4 is used to manufacture forgings with higher strength and larger quenched and tempered section than 35CrMo steel, such as big gear for locomotive traction, transmission gear of supercharger, rear shaft, connecting rod and spring clamp under great load. 42CrMo4 can also be used for drill pipe joint and fishing tools in oil deep wells below 2000m.

42CrMo4(1.7225) steel plate
Executive standard: EN 10083 / 3-2006
Characteristics: 42CrMo4 steel plate has high strength, hardenability, good toughness, small deformation during quenching, high creep strength and rupture strength at high temperature.
42CrMo4 steel plate is an American AISI standard 4140 steel improved variety. The steel has good machinability, easy polishing, easy biting and electroplating.

Mechanical properties of 42CrMo4 steel plate
Tensile strengthσB (MPA): ≥1080 (110)
Yield strengthσs (MPA): ≥930 (95)
Elongationδ5 (%): ≥12
Reduction of areaψ (%): ≥45
Impact energy Akv (J): ≥ 63
Impact toughness valueαkV (J / cm & sup2;): ≥ 78 (8)
Hardness: ≤217hb