Aluminum 2024-T3 is a heat-treatable aluminum-copper alloy in the precipitation-hardened T3 condition, combining aluminum with 3.8–4.9% copper and 1.2–1.8% magnesium to achieve high strength-to-weight performance. It is widely used in aerospace structures, military aircraft fuselages and wings, and high-stress mechanical components where weight reduction and strength are critical. Engineers select 2024-T3 over softer aluminum alloys when superior strength is needed, though it offers lower corrosion resistance than some alternatives and is typically clad or painted for protection in service environments.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Fracture Toughness(KIC) | 37,000,000 | Pa·√m | — | — | |
Poisson's Ratio(ν) | 0.3300 | - | — | — | |
Yield Strength (0.2% offset)(σy) | 345.0 | MPa | T3 | — | |
Young's Modulus(E) | 73.10 | GPa | — | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Thermal Conductivity(k) | 121 | W/(m·K) | — | — |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.780 | kg/m³ | — | — |