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.
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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 |
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