eFunda: Properties of Aluminum Alloy AA 7075
engineering fundamentals Aluminum Alloy AA 7075
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Wrought:
   AA 1xxx
   AA 2xxx
   AA 3xxx
   AA 4xxx
   AA 5xxx
   AA 6xxx
   AA 7xxx
Cast:
   2xx.0 or x2xx.0
   3xx.0 or x3xx.0
   4xx.0 or x4xx.0
   5xx.0 or x5xx.0
   7xx.0
   8xx.0
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AA 7075
Category Aluminum Alloy
Class Wrought

Composition

ElementWeight %
Al  90.0 
Cu  1.6 
Mg  2.5 
Cr  0.23 
Zn  5.6 

Mechanical Properties

Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 2.8 25  
Poisson's Ratio 0.33 25  
Elastic Modulus (GPa) 70-80 25  
Tensile Strength (Mpa) 220  25  O (Alclad) more
Yield Strength (Mpa) 95 
Elongation (%) 17 
Reduction in Area (%)  
Hardness (HB500) 60  25  more
Shear Strength (MPa) 150  25  O  more
Fatigue Strength (MPa) 160  25  T6  more

Thermal Properties

Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 23.2  20-100  
Thermal Conductivity (W/m-K) 130  25  T6 more

Electric Properties

Properties Conditions 
T (°C)Treatment
Electric Resistivity (10-9W-m) 52  25  T6 more
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