42CrMo4 Steel

42CrMo4 alloy steel forgings have high strength, high hardenability, and good toughness. Our 42CrMo4 alloy steel forgings are ideal blank materials for the manufacture of heavy-duty parts, including gears, transmission shafts, slewing bearings, crankshafts, fasteners, connection rods, cylinder rods, and cylinder tubes.

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42CrMo4 Alloy Steel Forgings Applications

42CrMo4 alloy steel forgings have high hardenability, high strength, and good toughness. Our 42CrMo4 alloy steel forgings are ideal blank materials for the manufacture of heavy-duty parts.

Heavy Machinery: Gears, transmission shafts, slewing bearings, crankshafts, fasteners, connection rods.
Hydraulic cylinders: Cylinder rods, cylinder tubes.
Oil & Gas: Drill collars, tool joints, high-pressure tubes, downhole tools, flanges
Power Generation: Turbine shafts, generator components, rotor bolts.
General Engineering: Machine tool spindles, mandrels, heavy-duty components.

42CrMo4 Forged Steel Features

42CrMo4 alloy steel forgings have high hardenability, high strength, good toughness, and small deformation during quenching. In addition to these excellent properties, 42CrMo4 alloy steel forgings exhibit high creep and high endurance strength at high temperatures.

High Strength & Toughness:

After quenching and tempering, 42CrMo4 steel forgings exhibit a superior combination of tensile and yield strengths, along with good toughness.

Good Hardenability:

Large-sized 42CrMo4 steel forgings can be fully hardened and gain uniform properties.

High Fatigue & Wear Resistance:

42CrMo4 steel forgings have high fatigue strength and good abrasion resistance. They are suitable blank materials for components under cyclic loads and friction.

Good Impact Resistance:

42CrMo4 steel forgings have excellent impact toughness even at low temperatures.

Versatile & Heat-Treatable:

42CrMo4 steel forgings can be heat-treated (quenched & tempered, induction hardened) to achieve specific hardness and mechanical properties.

Good Machinability:

42CrMo4 forged steel is easy to machine.

42CrMo4 Steel Forgings Manufacturer

We are a leading supplier and manufacturer of 42CrMo4 steel forgings in China.

Our 42CrMo4 steel forgings have high hardenability, high strength, and good toughness. In addition to these excellent properties, 42CrMo4 steel forgings exhibit high creep and elevated-temperature endurance strength. Our 42CrMo4 steel forgings are ideal blank materials for the manufacture of heavy-duty parts, including gears, transmission shafts, slewing bearings, crankshafts, fasteners, connection rods, cylinder rods, and cylinder tubes.

42CrMo4 Alloy Steell Properties

42CrMo4 alloy steel physical properties information table.

Properties	Metric
Density	7.85 g/cm3
Melting point	1425°C to 1460°C

42CrMo4 is an alloy steel with high hardenability, high strength, good toughness, and good machinability. 42CrMo4 steel forgings are ideal blank materials for heavy-duty parts like gears, axles, rods, fasteners, and shafts.

Properties	Metric
Tensile strength	950~1100 MPa
Yield strength	800~950 MPa
Elongation at break (in 50 mm)	12~25%
Reduction of area	45%-50%
Hardness	Can reach 53 HRC after induction hardening

42CrMo4 alloy steel thermal properties information table.

Properties	Metric
Thermal conductivity (@ 100°C)	40-46 W/mK

42CrMo4 Alloy Steel Chemical Composition

The chemical composition of 42CrMo4 forgings includes elements such as carbon, silicon, manganese, chromium, and molybdenum.

Steel Grade	Carbon, C	Silicon, Si	Manganese, Mn	Phosphorous, P	Sulfur, S	Chromium, Cr	Molybdenum, Mo
42CrMo4	0.38 – 0.45	≤0.4	0.6 – 0.9	≤0.025	≤0.035	0.9 – 1.2	0.15 – 0.3

42CrMo4 Alloy Steel Equivalent

EU EN	USA	Germany DIN,WNr	Italy UNI	China GB	Inter ISO
42CrMoS4 (1.7227)	4140	42CrMoS4	42CrMo4	42CrMo	42CrMoS4

Open Die Forging & Ring Rolling Forging

We possess multiple free forging machines and ring rolling machines. Our free forging machines includes a 1-ton air hammer, a 2-ton hydraulic hammer, a 5-ton hydraulic forging machine, a 3500-ton hydraulic forging machine, and multiple ring rolling machines.

Our custom forged parts can weigh up to 20,000 kg and have a maximum length of 20 m. The outer diameter of the forged rings can reach 4.5 m.

Why Choose Shanghai FAR WELL?

We are professional steel forging company in China for forged steel parts. Our factory is 200KM away from Shanghai Port. We are a modern management steel forging company targeting the international market.