7049/7149 aluminum T73511 is a high-strength Al-Zn-Mg-Cu alloy in a stress-relieved and artificially aged condition, designed for aerospace structural applications requiring excellent damage tolerance and stress-corrosion cracking (SCC) resistance. The T73511 temper provides reduced yield strength compared to T73 conditions but significantly improved resistance to SCC and exfoliation corrosion, making it suitable for critical airframe components in aircraft wings and fuselages.
Compliance & Regulations
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Ultimate Bearing Strength(Fbru) | 737.7 – 992.8 | MPa | 6 entriesClick to expand | ||
Bearing Yield Strength(Fbry) | 572.3 – 723.9 | MPa | 6 entriesClick to expand | ||
Compressive Modulus(Ec) | 73.08 | GPa | 22°C · Hand forging | ||
Compressive Yield Strength(Fcy)3 entries | 448.2 | MPa | 22°C · Extrusion · T73511 · AMS 4157 OR AMS 4343 · L · t=≤2.499 in | ||
| ↳ | 448.2 | MPa | 22°C · Extrusion · T73511 · AMS 4157 OR AMS 4343 · L · t=2.500-2.999 in | ||
| ↳ | 434.4 | MPa | 22°C · Extrusion · T73511 · AMS 4157 OR AMS 4343 · L · t=3.000-5.000 in | ||
Elongation at Break(εf) | 5.000 – 7.000 | - | 8 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)3 entries | 275.8 | MPa | 22°C · Extrusion · T73511 · AMS 4157 OR AMS 4343 · t=≤2.499 in | ||
| ↳ | 275.8 | MPa | 22°C · Extrusion · T73511 · AMS 4157 OR AMS 4343 · t=2.500-2.999 in | ||
| ↳ | 268.9 | MPa | 22°C · Extrusion · T73511 · AMS 4157 OR AMS 4343 · t=3.000-5.000 in | ||
Ultimate Tensile Strength(σUTS) | 468.8 – 510.2 | MPa | 8 entriesClick to expand | ||
Yield Strength (0.2% offset)(σy) | 399.9 – 441.3 | MPa | 8 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 |