DIN 42CrMo4 Alloy structural steel round bar Sample

DIN 42CrMo4 Alloy structural steel round bar is an industrial material. 42CrMo4 steel round barrequirements for the manufacture of higher intensity than the 35CrMo steel and tempered forging greater cross-section, such as a large locomotive traction gears, supercharger drive gear, rear axle, greatly affected by load and spring clip link, also 42CrMo4 It can be used to 2000m deep oil drill pipe joints and fishing tools and so on.

DIN 42CrMo4 Alloy steel round bar is standard AISI 4140 steel in the United States improved varieties. The steel of good workability, easy to polish, easy to bite flowers, can be plated.

42CrMo4 steel round bar Chemical composition(%)

C: 0.38 ~ 0.45 Si≤0.40 Mn: 0.60 ~ 0.90 S allow the residual content ≤0.035 P allow the residual content ≤0.035 Cr: 0.90 ~ 1.20 Mo: 0.15 ~ 0.30

42CrMo4 Alloy structural steel round bar Mechanical Properties

Tensile strength σb (MPa): ≥1080 (110)

Yield strength σs (MPa): ≥930 (95)

Elongation δ5 (%): ≥12

Reduction of area ψ (%): ≥45

Impact energy Akv (J): ≥63

Impact toughness αkv (J / cm & sup2;): ≥78 (8)

Hardness: ≤217HB

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