Aluminum Alloy

Aluminum 7075-T6 / T651

7075 is a zinc-alloyed, high-strength aluminum used where strength-to-weight matters more than weldability. In T6/T651 temper its strength approaches many mild steels at roughly one third of the density. Request a quote or browse all materials.

Typical Properties

Aluminum 7075 at a glance

Property	Typical value
Density	2.81 g/cm³ (0.102 lb/in³)
Ultimate tensile strength	572 MPa (83 ksi)
Yield strength (0.2%)	503 MPa (73 ksi)
Elongation at break	11%
Hardness	150 HB
Elastic modulus	71.7 GPa (10,400 ksi)
Thermal conductivity	130 W/m·K
Melting range	477–635 °C

Values are typical for T6/T651. Overaged tempers such as T73 trade some strength for better stress-corrosion cracking resistance. These are typical reference values from standard published data, not guaranteed minimums. Request material certificates in your RFQ if properties must be verified.

Advantages

Why engineers choose Aluminum 7075

Strength-to-weight

Among the strongest commonly machined aluminum alloys.

Fatigue performance

Good fatigue strength for structural and dynamic parts.

Machinability

Machines well and holds tight tolerances; chips break readily.

Anodizing

Accepts Type II and Type III anodizing.

Design considerations: Generally not recommended for fusion welding; lower general corrosion resistance than 6061; higher material cost; anodized color can look slightly different from 6061.

Applications