Aluminum Alloy 2024-T3 Datasheet
Chemical Composition:
| Element | Percentage |
|---|---|
| Aluminum (Al) | 90.7 – 94.7% |
| Copper (Cu) | 3.8 – 4.9% |
| Manganese (Mn) | 1.2 – 1.8% |
| Magnesium (Mg) | 1.2 – 1.8% |
| Other | < 1.0% each |
Physical Properties:
- Density: 2.78 g/cm³
- Melting Point: 640°C (1184°F)
- Thermal Conductivity: 121 W/(m·K)
- Electrical Conductivity: 29.7 MS/m
- Specific Heat: 897 J/(kg·K)
Mechanical Properties:
| Property | Value |
|---|---|
| Tensile Strength | 470 MPa (68 ksi) |
| Yield Strength | 325 MPa (47 ksi) |
| Elongation at Break | 20% |
| Hardness (Brinell) | 120 |
Thermal Properties:
- Coefficient of Thermal Expansion: 23.2 x 10^(-6) /°C
- Thermal Resistivity: 0.000029 m²·K/W
Processing Properties:
- Heat Treatment: Solution Heat Treatment and Cold Working (T3 Temper)
- Weldability: Fair; Use inert gas shielding, precautions to avoid hot cracking
- Machinability: Moderate; Use appropriate tools and techniques
Corrosion Resistance:
- Generally good, but can be enhanced through coatings or anodizing for specific applications.
Typical Applications:
- Aerospace Components (Wings, Fuselage, etc.)
- Military Aircraft and Defense Applications
- High-Performance Sports Equipment (Bicycle Frames, Climbing Gear)
- Automotive Parts (High-Performance and Racing Vehicles)
Heat Treatment:
The “T3” temper involves a solution heat treatment at a specific temperature, followed by quenching, and then cold working or stretching. This process enhances the alloy’s strength and hardness.
Conclusion:
Aluminum Alloy 2024-T3 is a versatile and high-performance material, particularly well-suited for applications where strength, durability, and weight are critical considerations. Its use in aerospace and other demanding industries underscores its reliability and performance in challenging environments.