7475 Aluminum T61511 is a high-strength Al-Zn-Mg-Cu alloy in a T61511 temper (solution heat-treated, stress-relieved by stretching, and artificially aged) designed for critical aerospace structural applications requiring maximum strength-to-weight ratio and damage tolerance. This temper provides tensile strengths in the 70–80 ksi range with improved stress-corrosion cracking resistance and fracture toughness compared to T6 tempers, making it suitable for highly loaded fuselage skins, wing components, and fastener applications in military and commercial aircraft.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Modulus(Ec) | 10,500 | ksi | 22°C · Sheet | ||
Poisson's Ratio(ν) | 0.3300 | - | 22°C | ||
Shear Modulus(G) | 3,800 | ksi | 22°C · Sheet | ||
Young's Modulus(E) | 10,000 | ksi | 22°C · Sheet |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1010 | lb/in³ | 22°C |