Clad 7475 aluminum alloy T77511 is a high-strength aluminum-zinc-magnesium-copper alloy with an alclad surface layer, thermomechanically treated to peak aging with controlled stretching, providing excellent fracture toughness and stress-corrosion-cracking resistance for critical aerospace structures. The T77511 temper achieves tensile strengths of 70–80 ksi with superior damage tolerance compared to overaged tempers, making it suitable for highly stressed fuselage and wing components where fatigue and corrosion resistance are essential.
Compliance & Regulations
3 interactive curves for this material
Stress-strain, S-N fatigue and environmental knockdown curves are free with an account.
Create free account| 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 | ||
S–N Curve (Wöhler)(S–N)3 entries | Curve (11 pts) | ksi | — | ||
| ↳ | Curve (15 pts) | ksi | — | ||
| ↳ | Curve (16 pts) | ksi | — | ||
Young's Modulus(E) | 10,000 | ksi | 22°C · Sheet |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 0.1010 | lb/in³ | 22°C |