42CrMo4 steel is ultra high strength steel, high strength and toughness, hardenability better, no temper brittleness, after quenching with high fatigue limit and several anti-shock, good low-temperature impact toughness.

42CrMo4 Correspond steel:

AISI 4140,JIS SMn440,GB42CrMo

42CrMo4 chemical composition(％):

C: 0.38 ~ 0.45

Si : 0.17 ~ 0.37

Mn: 0.50 ~ 0.80

S: to allow the residual content of ≤0.035

P: allow the residual content ≤0.035

Cr: 0.9～1.2

Ni: to allow the residual content ≤0.030

Cu: to allow the residual content of ≤0.030

Mo: 0.15～0.25

42CrMo4 Mechanical Properties:

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

Yield strength σs (MPa): ≥930 (95)

Elongation δ5 (%): ≥12

Impact energy Akv (J): ≥63

Round bar : Diameter : 1mm-2000mm

Square bar :Size: 50mm * 50mm～600mm *600mm

Plate steel/flat bar :Size: Thickness: 0.1mm～800mm Width: 10mm to 1500mm

Tube/pipe: Size: OD: 6-219mm WT: 1-35 mm.

Cold-rolled sheet: Thickness: 2-5mm Width:1000mm Length: 2000mm

Hot-rolled sheet: Thickness:6-80mm Width: 210-610mm

Length: We can supply any length based on the customer's requirement.

Application:

 42CrMo4 alloy steel is used in the manufacture of non-corrosive medium and temperature lower than 250 ℃, high-pressure pipes and all kinds of fasteners medium containing a mixture of nitrogen and hydrogen to work, higher carburizing parts such as gears, shafts, etc .We serve you with our honesty, integrity, and professionality .

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