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UNS C82400
Category Copper Alloy
Class Cast
Type High-copper alloy
Designations United States: UNS C82400

Composition
ElementWeight %
Cu  96.4 (min) 
Be  1.70 
Co  0.25 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 8.8-8.94 25  
Poisson's Ratio 0.34 25  
Elastic Modulus (GPa) 117 25  
Tensile Strength (Mpa) 496 (1034)  25  (castings: centrifugal, investment, permanent mold, plaster, sand) 
Yield Strength (Mpa) 255 (965) 
Elongation (%) 20 (1) 
Reduction in Area (%)  
Note: Values in parentheses indicate responses to heat treatment
Hardness (HRB (HRC)) 78 (38)  25  (as cast) 
Note: Value in parentheses indicates response to heat treatment.
Glossary