Aluminium Alloy 7075 is capable of high strength as developed by heat treating. It also has excellent properties at low temperatures.
Applications for Aluminium Alloy 7075
- Aircraft fittings
- Aerospace and defence applications
Chemical Compositions of Aluminium Alloy 7075
| Element | Composition % |
|---|---|
| Silicon (Si) | 0.10 - 0.40 |
| Iron (Fe) | 0.10 - 0.50 |
| Copper (Cu) | 1.2 - 2.0 |
| Manganese (Mn) | 0.05 - 0.30 |
| Magnesium (Mg) | 2.10 - 2.90 |
| Zinc (Zn) | 5.10 - 6.10 |
| Chromium (Cr) | 0.15 - 0.28 |
| Titanium (Ti) | 0.01 - 0.20 |
| Gallium (Ga) | 0.01 - 0.05 |
| Vanadium (V) | 0.01 - 0.06 |
| Aluminium (Al) | Balance |
Mechanical Properties of Aluminium Alloy 7075
| Property | Value |
|---|---|
| Proof Stress | 440 Min MPa |
| Tensile Strength | 572 MPa |
| Elongation at 50 mm | 4 Min % |
| Hardness Brinell | 155 HB |
| Please note that Mechanical Properties shown are for T 651 temper | |
Aluminium Alloy 7075 Weldability
- Gas
- Poor
- Arc
- Poor
- Brazability
- Poor
- Resistance
- Excellent
AA 7075 Fabrication
- Machinability
- Good
- Workability - Cold
- Poor
Generic Physical Properties of Aluminium Alloy 7075
| Property | Value |
|---|---|
| Density | 2.81 g/cm3 |
| Melting Point | 635°C |
| Thermal Expansion | 23.6 ×10−6 /K |
| Modulus of Elasticity | 72 GPa |
| Thermal Conductivity | 130 W/m.K |
| Electrical Resistivity | 0.0515 ×10−6Ω.m |
