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   4xx.0 or x4xx.0
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   8xx.0
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242.0
Category Aluminum Alloy
Class Cast

Composition
ElementWeight %
Al  92.50 
Cu  4.00 
Mg  1.50 
Ni  2.0 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 2.6-2.8 25  
Poisson's Ratio 0.33 25  
Elastic Modulus (GPa) 70-80 25  
Tensile Strength (Mpa) 185  25  T21 (sand casting) more
Yield Strength (Mpa) 125 
Elongation (%) 1.0 
Reduction in Area (%)  
Glossary