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AA 2218
Category Aluminum Alloy
Class Wrought

Composition
ElementWeight %
Al  92.50 
Cu  4.0 
Mg  1.5 
Ni  2.0 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 2.81 25  
Poisson's Ratio 0.33 25  
Elastic Modulus (GPa) 70-80 25  
Tensile Strength (Mpa) 405  25  T61  more
Yield Strength (Mpa) 305 
Elongation (%)  
Reduction in Area (%)  
Hardness (HB500) 115  25  T61 more
Shear Strength (MPa) 205  25  T72  

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 22.3  20-100  
Thermal Conductivity (W/m-K) 148  25  T61 more

Electric Properties
Properties Conditions 
T (°C)Treatment
Electric Resistivity (10-9W-m) 45  25  T61 more
Glossary