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scm440 4140 42CrMo Hot Rolled Carbon Steel Round Rod
Discover high-performance steel solutions for demanding applications with our premium SCM440 steel rods, 4140 alloy steel bars, and 42CrMo round bars. Engineered for durability and precision, our hot rolled carbon steel rods are ideal for industrial, automotive, and construction uses, offering superior strength and machinability. These materials undergo strict quality control to ensure consistent performance in high-stress environments.
The SCM440 4140 42CrMo hot rolled carbon steel round rod is manufactured to meet international standards, providing excellent toughness and wear resistance. Its uniform composition and smooth surface finish make it suitable for machining, forging, and heat treatment processes, ensuring reliability in critical components.
Product Specifications
- Material Grades: SCM440, 4140, 42CrMo
- Type: Hot Rolled Carbon Steel
- Shape: Round Rod
- Diameter Range: 10mm to 200mm
- Length: Standard 3m to 6m, custom sizes available
- Hardness: 18-22 HRC (as rolled)
- Tensile Strength: 655 MPa min
- Yield Strength: 415 MPa min
- Elongation: 25% min
- Surface Finish: Black, scaled
- Applications: Shafts, gears, bolts, and machinery parts
| Grade | Chemical Composition (%) | Density (g/cm³) | Thermal Conductivity (W/m·K) |
|---|---|---|---|
| SCM440 | C: 0.38-0.43, Si: 0.15-0.35, Mn: 0.60-0.85, Cr: 0.90-1.20, Mo: 0.15-0.30 | 7.85 | 42.7 |
| 4140 | C: 0.38-0.43, Si: 0.15-0.35, Mn: 0.75-1.00, Cr: 0.80-1.10, Mo: 0.15-0.25 | 7.85 | 42.6 |
| 42CrMo | C: 0.38-0.45, Si: 0.17-0.37, Mn: 0.50-0.80, Cr: 0.90-1.20, Mo: 0.15-0.25 | 7.85 | 42.8 |
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