EN32B Carbon Steel Round Bar (UNS G10100)
EN32B Round Bar is a low carbon case-hardening steel widely used for components that require a hard, wear-resistant surface with a tough core. Internationally identified as UNS G10100, EN32B typically contains 0.07–0.15% carbon, making it ideal for carburizing and case hardening applications. After heat treatment, EN32B provides excellent fatigue resistance and dimensional stability, making it a preferred material in automotive and general engineering industries.
Key Features
- Excellent case hardening and carburizing properties
- Tough and ductile core with hard outer surface
- Good machinability before heat treatment
- High wear resistance after surface hardening
- Reliable performance in dynamic and fatigue-loaded parts
Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| BS | EN32B |
| EN | C10E / 1.1121 |
| DIN | C10 |
| ASTM / SAE | AISI 1010 |
| JIS | S10C |
| IS | 10C4 |
Sizes
- Diameter: 10 mm to 500 mm
- Length: 3 m, 6 m, or cut-to-length
- Custom sizes available on request
EN32B Round Bar Chemical Composition
| Element | Percentage (%) |
|---|---|
| Carbon (C) | 0.07 – 0.15 |
| Manganese (Mn) | 0.30 – 0.60 |
| Silicon (Si) | ≤ 0.40 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.045 |
EN32B Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength | 350 – 450 MPa |
| Yield Strength | ≥ 200 MPa |
| Elongation | ≥ 25% |
| Hardness | 100 – 140 HB |
UNS G10100 Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | ~1460°C |
| Thermal Conductivity | 51 W/m·K |
| Modulus of Elasticity | 210 GPa |
Type of EN32B Carbon Steel Round Bars
- Hot Rolled Round Bar
- Bright Drawn Round Bar
- Forged Round Bar
- Turned & Polished Round Bar
Applications
- Gears and pinions
- Shafts, cams, and spindles
- Automotive transmission components
- Bushes, pins, and rollers
- Case-hardened machine parts
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