Clad 7475 aluminum is a high-strength 7xxx-series alloy (Zn-Mg-Cu system) with a thin pure aluminum cladding layer for enhanced corrosion resistance, used primarily in aerospace structural applications requiring exceptional strength-to-weight ratios and fatigue performance. The T761 temper (overaged condition) provides reduced quench sensitivity and improved stress-corrosion cracking resistance compared to peak-aged conditions, with yield strengths approximately 440–480 MPa and ultimate tensile strengths of 500–550 MPa in sheet form.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Ultimate Bearing Strength(Fbru) | 717.1 – 979.1 | MPa | 10 entriesClick to expand | ||
Bearing Yield Strength(Fbry) | 572.3 – 758.4 | MPa | 10 entriesClick to expand | ||
Compressive Modulus(Ec) | 72.39 | GPa | 22°C · Sheet | ||
Compressive Yield Strength(Fcy) | 379.2 – 434.4 | MPa | 10 entriesClick to expand | ||
Elongation at Break(εf)3 entries | 9.000 | - | 22°C · Sheet · T761 · AMS 4100 · LT · t=0.040-0.062 in | ||
| ↳ | 9.000 | - | 22°C · Sheet · T761 · AMS 4100 · LT · t=0.063-0.187 in | ||
| ↳ | 9.000 | - | 22°C · Sheet · T761 · AMS 4100 · LT · t=0.188-0.249 in | ||
Poisson's Ratio(ν) | 0.3300 | - | 22°C | ||
Shear Modulus(G) | 26.20 | GPa | 22°C · Sheet | ||
Ultimate Shear Strength(Fsu) | 275.8 – 282.7 | MPa | 5 entriesClick to expand | ||
Ultimate Tensile Strength(σUTS) | 455.1 – 496.4 | MPa | 10 entriesClick to expand | ||
Yield Strength (0.2% offset)(σy) | 379.2 – 434.4 | MPa | 10 entriesClick to expand | ||
Young's Modulus(E) | 68.95 | GPa | 22°C · Sheet | ||
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.796 | kg/m³ | 22°C |