Aluminum Alloy
2024-T3
Aerospace fatigue-resistant alloy with high strength. Common in aircraft skins and structures; not readily weldable.
Last verified: 2026-07-09
| SeriesAlloy series (principal alloying element). | 2xxx |
|---|---|
| TemperThe common temper these typical values apply to. | T3 |
| Density(g/cm³) | 2.78 |
| Tensile(MPa)Typical ultimate tensile strength. | 483 |
| Yield(MPa)Typical 0.2% offset yield strength. | 345 |
| Elong.(%)Typical elongation at break. | 18 |
| Hardness(HB)Typical Brinell hardness. | 120 |
| Modulus(GPa)Elastic (Young's) modulus. | 73.1 |
| Machinability | Good |
| Weldability | Poor |
- Typical uses: aircraft skins and structures, fatigue-critical parts, fasteners.
- Excellent fatigue resistance; often clad ('Alclad') for corrosion protection.
Other aluminum alloys
Sources
- The Aluminum Association — Aluminum Standards and Data (typical mechanical properties)
- ASM International — properties of wrought aluminum alloys