7049/7149 aluminum is a high-strength zinc-copper-magnesium alloy used primarily in aircraft structural components and landing gear requiring superior fatigue resistance and stress-corrosion cracking (SCC) resistance. The T73 temper is overaged to provide improved SCC resistance at slight strength reduction compared to T6, maintaining excellent bearing and shear properties with yield strength around 450-475 MPa and ultimate tensile strength around 520-540 MPa.
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27 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) | 655.0 – 951.5 | MPa | 26 entriesClick to expand | ||
Bearing Yield Strength(Fbry) | 482.6 – 682.6 | MPa | 26 entriesClick to expand | ||
Compressive Modulus(Ec) | 73.08 | GPa | 22°C · Hand forging | ||
Compressive Tangent Modulus vs Stress(Etn(σ)) | — | Pa | 5 entriesClick to expand | ||
Compressive Yield Strength(Fcy) | 351.6 – 455.1 | MPa | 30 entriesClick to expand | ||
Elongation at Break(εf) | 2.000 – 9.000 | - | 19 entriesClick to expand | ||
Poisson's Ratio(ν) | 0.3300 | - | 22°C | ||
Shear Modulus(G) | 26.89 | GPa | 22°C · Die forging | ||
Ultimate Shear Strength(Fsu) | 255.1 – 289.6 | MPa | 19 entriesClick to expand | ||
S–N Curve (Wöhler)(S–N) | — | Pa | 9 entriesClick to expand | ||
Stress–Strain Curve (buckling region, ≤ 2% strain)(σ–ε (low-strain)) | — | Pa | 10 entriesClick to expand | ||
Ultimate Tensile Strength(σUTS) | 455.1 – 510.2 | MPa | 25 entriesClick to expand | ||
Yield Strength (0.2% offset)(σy) | 379.2 – 441.3 | MPa | 25 entriesClick to expand | ||
Young's Modulus(E) | 70.33 | GPa | 22°C · Die forging | ||
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | 2.851 | kg/m³ | 22°C |