Aluminum 7075
Aluminum 7075 – High-Strength Aerospace Aluminum Alloy (Zn-Mg-Cu)
Aluminum 7075 is one of the highest-strength aluminum alloys commercially available, belonging to the 7xxx zinc-magnesium-copper series. With a tensile strength of 572 MPa in T6 temper, it delivers exceptional performance for aerospace and defense applications where a superior weight-to-strength ratio is critical.
Key Properties
- Tensile Strength: 572 MPa
- Yield Strength: 503 MPa
- Density: 2.81 g/cm³
- Hardness: 150 HB
- Weldability: Poor – not recommended for welded assemblies
- Tempers Available: T6, T73
Common Applications
Aircraft fuselage frames and wing spars, aerospace fittings, tooling plates, high-performance sporting equipment, and military components. Certified to ASTM B209 / AMS 2770.
Material properties
| Material name | Aluminum 7075 |
|---|---|
| Type | Aluminum |
| Standard code | ASTM B209 / AMS 2770 |
| Tensile strength (MPa) | 572 |
| Yield strength (MPa) | 503 |
| Fatigue strength (MPa) | 159 |
| Elongation (%) | 11 |
| Hardness (Brinell) | 150 |
| Density (g/cm³) | 2.81 |
| Electrical resistivity (µΩ·in) | 5.2 |
| Thermal conductivity (W/m·K) | 130 |
| Melting range (°C) | 477–635 |
| Weldability | Poor |
| Formability | Fair |
| Shear modulus | 26.9 |
| Industry code | aluminum_7075 |