Forging Round Billet 42CrMo4

Forging Round Billet 42CrMo4

Manufacturer of premium 42CrMo4 (1.7225) alloy steel forging billets. Our round billets are engineered for high strength, toughness, and fatigue resistance in critical components. Request a quote today.

2010 ESTABLISHED

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Product details

Our Forging Round Billet is manufactured from premium 42CrMo4 alloy steel (equivalent to AISI 4140), specifically designed for heavy-duty forging applications requiring superior strength and toughness. This high-quality billet offers exceptional hardenability, fatigue resistance, and mechanical properties, making it perfect for critical components in automotive, aerospace, oil and gas, and heavy machinery industries. The 42CrMo4 grade provides excellent response to heat treatment, ensuring optimal performance in the most demanding applications.

Parameter	Value	Remarks
Standard	EN 10083-3:2006 (Common European standard applicable for this steel grade)	Alloy structural steel for quenched and tempered applications
Grade	42CrMo4
Chemical Composition (wt%)
– Carbon (C)	0.38 – 0.45
– Silicon (Si)	≤0.40
– Manganese (Mn)	0.60 – 0.90
– Phosphorus (P)	≤0.035
– Sulfur (S)	≤0.035
– Chromium (Cr)	0.90 – 1.20	Key alloying element for improving strength and hardenability
– Molybdenum (Mo)	0.15 – 0.30	Enhances strength, toughness and high-temperature properties
Mechanical Properties (after appropriate heat treatment like quenching and tempering)
– Yield Strength (ReL)	≥900 MPa	Values can vary depending on specific heat treatment parameters and billet diameter
– Tensile Strength (Rm)	1000 – 1200 MPa
– Elongation (A)	≥10%
– Reduction of Area (Z)	≥40%
– Impact Energy (Aku)	≥30 J (at room temperature)	Impact test sample preparation and results can be influenced by test method and specimen geometry
Hardness	280 – 320 HB (Brinell hardness)	After the specified heat treatment for the desired mechanical properties
Delivery Condition	Usually supplied in annealed or normalized state for forging operations, and then undergoes further heat treatment to achieve final mechanical properties
Typical Applications	Forging parts in automotive industry (such as crankshafts, connecting rods), heavy machinery components (like gears, shafts), and in the energy sector for some high-strength and high-load-bearing parts