AISI 5015 Round Bar (UNS G50150)
AISI 5015 Round Bar is a chromium alloy steel with low carbon content, primarily designed for carburizing and case-hardening applications. This grade provides an excellent combination of a hard, wear-resistant surface with a tough and ductile core, making it ideal for automotive and engineering components subjected to repeated stress and wear.
Key Features
- Chromium alloy steel for improved hardenability
- Excellent carburizing and case-hardening characteristics
- High surface wear resistance after heat treatment
- Good core toughness and fatigue strength
- Suitable for automotive and mass-production components
Equivalent Grades
| Standard | Equivalent Grade |
|---|---|
| EN | 15Cr3 |
| DIN | 1.7015 |
| JIS | SCR415 |
| IS | 15Cr3 |
Sizes
- Diameter: 20 mm to 450 mm
- Length: 3 m, 6 m, or cut-to-length
- Custom sizes available on request
AISI 5015 Chemical Composition
| Element | Percentage (%) |
|---|---|
| Carbon (C) | 0.13 – 0.18 |
| Manganese (Mn) | 0.70 – 0.90 |
| Chromium (Cr) | 0.70 – 0.90 |
| Silicon (Si) | 0.15 – 0.35 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.040 |
| Iron (Fe) | Balance |
5015 Mechanical Properties
| Property | Value |
|---|---|
| Core Tensile Strength | 750 – 950 MPa |
| Yield Strength | ~550 MPa |
| Elongation | 14 – 18% |
| Case Hardness | 58 – 62 HRC |
| Core Hardness | 28 – 35 HRC |
UNS G50150 Physical Properties
| Property | Value |
|---|---|
| Density | 7.85 g/cm³ |
| Melting Point | ~1420°C |
| Thermal Conductivity | 46.0 W/m·K |
| Modulus of Elasticity | 205 GPa |
Types of AISI 5015 Round Bar
- Hot Rolled Round Bar
- Forged Round Bar
- Peeled Round Bar
- Turned & Polished Round Bar
Applications
- Automotive gears and pinions
- Transmission and differential components
- Shafts requiring case hardening
- Bushings and sleeves
- Industrial machinery parts
- Carburized engineering components
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