Aluminum 7075-T6

Aluminum 7075-T6 is a high-strength aluminum alloy with zinc as its primary alloying element. It has the highest strength-to-weight ratio of common aluminum alloys and is extensively used in aerospace structural applications where strength is critical.

Machinability

70/100

Tolerance

±0.005 mm

Category

Aluminum Alloys

Material Properties

PropertyValue
Tensile Strength572 MPa (83 ksi)
Yield Strength503 MPa (73 ksi)
Hardness150 HB
Density2.81 g/cm³
Machinability Rating70/100
Thermal Conductivity130 W/m·K
Melting Point477–635 °C
Tolerance±0.005 mm

Common Grades

7075-T67075-T6517075-T7351

Advantages

  • Very high strength
  • Excellent fatigue resistance
  • Good machinability
  • High strength-to-weight ratio

Limitations

  • Poor weldability
  • Lower corrosion resistance than 6061
  • Higher cost
  • Susceptible to stress corrosion cracking

Common Applications

Aircraft structures

Gears

Shafts

High-stress fittings

Missile parts

Rock climbing equipment

Industries Served

AerospaceDefenseAutomotiveSports Equipment

Available Surface Finishes

Anodize Type IIAnodize Type IIIChromate ConversionChem Film

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