• API 5CT N80 casing and tubing pipe
• API 5CT K55 casing and tubing pipe
• API 5CT J55 casing and tubing pipe
• EN10028-2 16Mo3 Boiler and Pressure Vessel steel Plate Notch impact energy
• EN10028-2 P265GH Pressure vessels steel equivalents
• EN 10210 S355J2H low alloy carbon structural steel
• EN 10210 S355J0H steel hollow materials
• GB/T 18248 34CrMo4
• GB/T 18248 35CrMo alloy steel
• 30CrMo steel Heat treatment, 30CrMo steel tube/pipe

42CrMo steel

42CrMo steel is an ultra-high strength steel with high strength and toughness, good hardenability, no obvious temper brittleness, high fatigue limit and multiple impact resistance after quenching and tempering, and good low temperature impact toughness. The steel is suitable for the manufacture of large and medium-sized plastic molds requiring a certain strength and toughness.

42CrMo Chemical composition
C ：0.38～0.45%
Si：0.17～0.37%
Mn：0.50～0.80%
S ：Allowable residual content≤0.035%
P ：Allowable residual content≤0.035%
Cr：0.90～1.20%
Ni：Allowable residual content≤0.030%
Cu：Allowable residual content≤0.030%
Mo：0.15～0.25%

42CrMo Mechanical property
Tensile strength σb (MPa): ≥ 1080 (110)
Yield strength σs (MPa): ≥ 930 (95)
Elongation δ5 (%): ≥12
Area shrinkage ψ (%): ≥ 45
Impact work Akv (J): ≥ 63
Impact toughness value αkv (J/cm2): ≥78(8)
Hardness: ≤217HB [1]
Sample size: sample blank size is 25mm

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