Clad 7475 aluminum alloy T61511 is a high-strength aerospace aluminum with zinc, magnesium, and copper as primary alloying elements, clad with commercially pure aluminum for enhanced corrosion resistance and fatigue crack initiation resistance. The T61511 temper (solution heat-treated, stress-relieved by stretching, and artificially aged) provides ultimate tensile strength of approximately 70–75 ksi with improved stress-corrosion cracking resistance compared to unclad 7475, making it suitable for critical airframe components and pressure vessels operating at elevated temperatures up to ~250°F.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Modulus(Ec) | 72.39 | GPa | 22°C · Sheet | ||
Poisson's Ratio(ν) | 0.3300 | - | 22°C | ||
Shear Modulus(G) | 26.20 | GPa | 22°C · Sheet | ||
Young's Modulus(E) | 68.95 | GPa | 22°C · Sheet |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.796 | kg/m³ | 22°C |