7050 aluminium is a heat-treatable alloy which is known as a commercial aerospace alloy. The alloy offers a combination of high strength, high fatigue strength and high resistance to stress corrosion cracking. Particularly suited to heavy plate applications, the material is used to build fuselage frames, wing skins and other aerospace structures. 7050 alloy is available in two tempers.
Alloy 7050 is typically used for:
Alloy 7050
Spec: weight %
| Chemical Element | % Present |
|---|---|
| Silicon (Si) | 0.0 - 0.12 |
| Iron (Fe) | 0.0 - 0.15 |
| Copper (Cu) | 2.0 - 2.6 |
| Manganese (Mn) | 0.0 - 0.10 |
| Magnesium (Mg) | 1.9 - 2.6 |
| Chromium (Cr) | 0.0 - 0.04 |
| Zinc (Zn) | 5.7 - 6.7 |
| Zirconium (Zr) | 0.08 - 0.115 |
| Titanium (Ti) | 0.0 - 0.06 |
| Others | 0.05 - 0.15 |
| Aluminium (Al) | Balance |
Alloy 7050
| Property | Value |
|---|---|
| Density | 2.70 g/cm³ |
| Melting Point | 494 °C |
| Modulus of Elasticity | 70 - 80 GPa |
Condition: Available in two tempers: T7651 & T7451
| Property | Value |
|---|---|
| Tensile Strength | 515 MPa |
| Yield Strength | 455 MPa |
| Fatigue Strength | 240 MPa |
| Elongation A50 mm | 11% |
