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AA 7178
Category Aluminum Alloy
Class Wrought

Composition
ElementWeight %
Al  88.1 
Cu  2.0 
Mg  2.7 
Cr  0.26 
Zn  6.8 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 2.82 25  
Poisson's Ratio 0.33 25  
Elastic Modulus (GPa) 70-80 25  

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 23.4  20-100  
Glossary