7475-T761 is a high-strength aluminum-zinc-magnesium-copper alloy reinforced with aramid fibers, solution heat-treated, stress-relieved by stretching, and artificially aged to provide enhanced stiffness and damage tolerance for aerospace structural applications. The T761 temper and aramid reinforcement combination delivers improved fatigue resistance, reduced notch sensitivity, and better impact performance compared to unreinforced 7475-T761 while maintaining the alloy's high strength-to-weight ratio and fracture toughness suitable for critical aircraft components.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Ultimate Bearing Strength(Fbru) | 627.4 | MPa | 22°C · Aramid fiber reinforced sheet laminate · AMS 4302 · L | ||
Bearing Yield Strength(Fbry) | 503.3 | MPa | 22°C · Aramid fiber reinforced sheet laminate · AMS 4302 · L | ||
Compressive Modulus(Ec) | 66.19 | GPa | 22°C · Aramid fiber reinforced sheet laminate | ||
Compressive Yield Strength(Fcy) | 317.2 | MPa | 22°C · Aramid fiber reinforced sheet laminate · AMS 4302 · L | ||
Elongation at Break(εf) | 1.500 | - | 22°C · Aramid fiber reinforced sheet laminate · AMS 4302 · L | ||
Poisson's Ratio(ν) | 0.3500 | - | 22°C | ||
Shear Modulus(G) | 19.31 | GPa | 22°C · Aramid fiber reinforced sheet laminate | ||
Ultimate Shear Strength(Fsu) | 241.3 | MPa | 22°C · Aramid fiber reinforced sheet laminate · AMS 4302 | ||
Ultimate Tensile Strength(σUTS) | 710.2 | MPa | 22°C · Aramid fiber reinforced sheet laminate · AMS 4302 · L | ||
Yield Strength (0.2% offset)(σy) | 524.0 | MPa | 22°C · Aramid fiber reinforced sheet laminate · AMS 4302 · L | ||
Young's Modulus(E) | 67.57 | GPa | 22°C · Aramid fiber reinforced sheet laminate |
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.353 | kg/m³ | 22°C |