7249 Aluminum T7751 is a precipitation-hardened Al-Zn-Mg-Cu alloy in an overaged condition providing high strength (typical yield ~455 MPa) with improved stress-corrosion cracking (SCC) resistance compared to underaged tempers, commonly used in aircraft fuselage and wing structures where both damage tolerance and corrosion resistance are critical design requirements.
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1 interactive curve 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) | 10,400 | ksi | 22°C · Hand forging | ||
Poisson's Ratio(ν) | 0.3300 | - | 22°C | ||
Shear Modulus(G) | 3,800 | ksi | 22°C · Hand forging | ||
Stress–Strain Curve (buckling region, ≤ 2% strain)(σ–ε (low-strain)) | Curve (18 pts) | ksi | 21°C · LT | ||
Young's Modulus(E) | 10,100 | ksi | 22°C · Hand forging |