7075 aluminium alloy is a very high strength aerospace aluminium and is commonly used in applications where the strength of the material is critical and where the need for good corrosion resistance is not important. Offering superior stress corrosion resistance, 7075 provides very high yield and tensile strengths which is dictated by the particular chosen temper.
Alloy 7075 is typically used for:
Alloy 7075
Spec: weight %
| Chemical Element | % Present |
|---|---|
| Silicon (Si) | 0.0 - 0.40 |
| Iron (Fe) | 0.0 - 0.50 |
| Copper (Cu) | 1.20 - 2.00 |
| Manganese (Mn) | 0.0 - 0.30 |
| Magnesium (Mg) | 2.10 - 2.90 |
| Chromium (Cr) | 0.18 - 0.28 |
| Zinc (Zn) | 5.10 - 6.10 |
| Titanium (Ti) | 0.0 - 0.20 |
| Others | 0.0 - 0.15 |
| Aluminium (Al) | Balance |
Alloy 7075
| Property | Value |
|---|---|
| Density | 2.81 g/cm³ |
| Melting Point | 635 °C |
| Modulus of Elasticity | 72 GPa |
| Thermal Conductivity | 134 - 160 W/m·K |
| Electrical Resistivity | 40% IACS |
Condition: Properties dependent on chosen temper.
| Property | Value |
|---|---|
| Tensile Strength | 275 - 540 MPa (40-78 ksi) |
| Yield Strength | 455 - 465 MPa (24-68 ksi) |
