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Standard: EN 10083-3
Description: 42CrMo4 alloy steel is a high-strength, low-alloy steel widely recognized for its excellent mechanical properties and versatility in industrial applications. Conforming to the European standard EN 10083-3, ...
42CrMo4 alloy steel is a high-strength, low-alloy steel widely recognized for its excellent mechanical properties and versatility in industrial applications. Conforming to the European standard EN 10083-3, 42CrMo4 alloy steel is a chromium-molybdenum alloy known for its superior toughness, wear resistance, and ability to withstand high stress.
42CrMo4 alloy steel has high strength and durability, 42CrMo4 alloy steel offers excellent hardenability, allowing it to achieve high tensile strength after heat treatment. EN 10083-3 42CrMo4 alloy steel also exhibits good fatigue resistance and impact toughness, even under extreme conditions.
- Round bars: Diameter ranging from 10 mm to 500 mm.
-Flat bars: Thickness from 10 mm to 200 mm, width up to 1000 mm.
- Plates: Thickness from 10 mm to 300 mm.
- Forged blocks: Custom dimensions based on requirements.
- Automotive parts such as crankshafts and axles.
- Heavy machinery components like gears and shafts.
- Oil and gas equipment, including drill collars.
- Forged parts for construction machinery.
The chemical composition of 42CrMo4 ensures its robust mechanical properties.
Element | C | Si | Mn | P | S | Cr | Mo |
---|---|---|---|---|---|---|---|
Content (%) | 0.38-0.45 | ≤0.40 | 0.60-0.90 | ≤0.035 | ≤0.035 | 0.90-1.20 | 0.15-0.30 |
The mechanical properties of 42CrMo4 vary depending on the heat treatment process. Here are the typical values in a quenched and tempered condition
Property | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) |
---|---|---|---|---|
Value | 900-1100 | ≥650 | ≥12 | 255-300 |
42CrMo4 alloy steel has several international equivalents, making it accessible under different standards.
Standard | Grade |
---|---|
EN (Europe) | 42CrMo4 |
AISI/SAE (USA) | 4140 |
JIS (Japan) | SCM440 |
GB (China) | 42CrMo |
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