Alloy SteelBar/Rod
Overview
AISI 4130 is a chromium-molybdenum alloy steel known for its high strength, toughness, fatigue resistance, and good weldability. It is widely used for components requiring a combination of strength, durability, and machinability. Vertex Alloy supplies AISI 4130 round bars in various diameters and lengths, with annealed, normalized, quenched and tempered, or other specified conditions available according to customer requirements.
Size Range
- Diameter: 10β500 mm
- Length: Up to 6000 mm
- Custom sizes available upon request
- Surface: Black, peeled, turned, or ground
Grade Specification
| System | Value |
|---|---|
| AISI 4130 | - |
| UNS G41300 | - |
| ASTM A29 / A29M | - |
| ASTM A322 | - |
| AMS 6345 | - |
Chemical Composition
| Element | Value |
|---|---|
| C | 0.28β0.33 |
| Mn | 0.40β0.60 |
| Si | 0.15β0.35 |
| Cr | 0.80β1.10 |
| Mo | 0.15β0.25 |
| P | β€0.035 |
| S | β€0.040 |
| Fe | Balance |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | β₯560 MPa |
| Yield Strength | β₯460 MPa |
| Elongation | β₯20% |
| Hardness | Typically 170β220 HB |
Physical Properties
| Property | Unit | Value |
|---|---|---|
| Density | - | 7.85 g/cmΒ³ |
| Modulus of Elasticity | - | approximately 205 GPa |
| Poisson's Ratio | - | approximately 0.29 |
| Thermal Conductivity | - | approximately 42.7 W/mΒ·K at room temperature |
| Melting Range | - | approximately 1425β1510Β°C |
Applications
- Aerospace structural components
- Automotive and motorsport components
- Oil and gas equipment
- Shafts, gears, and axles
- High-strength mechanical parts
- Structural components
- Machined components
- High-strength fasteners