7249 is a high-strength aluminum-copper-magnesium-zinc alloy designed for aircraft structural applications requiring superior fatigue resistance and damage tolerance; the T7452 temper (solution heat-treated, artificially aged, and stress-relieved by stretching) provides optimized toughness and reduced residual stress in hand-forged components while maintaining yield strengths exceeding 400 MPa and excellent bearing load capability.
Compliance & Regulations
10 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 | |
|---|---|---|---|---|---|
Ultimate Bearing Strength(Fbru) | 641.2 – 944.6 | MPa | 20 entriesClick to expand | ||
Bearing Yield Strength(Fbry) | 524.0 – 751.5 | MPa | 20 entriesClick to expand | ||
Compressive Modulus(Ec) | 71.71 | GPa | 22°C · Hand forging | ||
Compressive Tangent Modulus vs Stress(Etn(σ))3 entries | Curve (31 pts) | Pa | 21°C · L | ||
| ↳ | Curve (31 pts) | Pa | 21°C · LT | ||
| ↳ | Curve (31 pts) | Pa | 21°C · ST | ||
Compressive Yield Strength(Fcy) | 365.4 – 503.3 | MPa | 30 entriesClick to expand | ||
Elongation at Break(εf) | 5.000 – 12.00 | - | 26 entriesClick to expand | ||
Poisson's Ratio(ν) | 0.3300 | - | 22°C | ||
Shear Modulus(G) | 26.20 | GPa | 22°C · Hand forging | ||
Ultimate Shear Strength(Fsu) | 289.6 – 337.8 | MPa | 10 entriesClick to expand | ||
Stress–Strain Curve(σ–ε)3 entries | Curve (14 pts) | Pa | 21°C · L | ||
| ↳ | Curve (14 pts) | Pa | 21°C · LT | ||
| ↳ | Curve (14 pts) | Pa | 21°C · ST | ||
Stress–Strain Curve (buckling region, ≤ 2% strain)(σ–ε (low-strain))4 entries | Curve (18 pts) | Pa | 21°C · L | ||
| ↳ | Curve (18 pts) | Pa | 21°C · L | ||
| ↳ | Curve (18 pts) | Pa | 21°C · LT | ||
| ↳ | Curve (18 pts) | Pa | 21°C · ST | ||
Ultimate Tensile Strength(σUTS) | 455.1 – 524.0 | MPa | 26 entriesClick to expand | ||
Yield Strength (0.2% offset)(σy) | 365.4 – 468.8 | MPa | 26 entriesClick to expand | ||
Young's Modulus(E) | 69.64 | GPa | 22°C · Hand forging | ||