7249 Aluminum T7651 is an Al-Zn-Mg-Cu alloy in a stabilized temper condition (solution heat-treated, artificially aged, then stress-relieved), providing high strength (yield ~450 MPa) with improved stress-corrosion cracking resistance suitable for critical aerospace structural applications where fatigue and sustained tensile loading are concerns. The T7651 condition balances strength retention with dimensional stability and reduced susceptibility to environmental stress cracking compared to T76 temper.
Compliance & Regulations
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) | 71.71 | GPa | 22°C · Hand forging | ||
Poisson's Ratio(ν) | 0.3300 | - | 22°C | ||
Shear Modulus(G) | 26.20 | GPa | 22°C · Hand forging | ||
Stress–Strain Curve (buckling region, ≤ 2% strain)(σ–ε (low-strain)) | Curve (18 pts) | Pa | 21°C · LT | ||
Young's Modulus(E) | 69.64 | GPa | 22°C · Hand forging |