eFunda: Properties of Copper Alloy UNS C86400
engineering fundamentals Copper Alloy UNS C86400
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UNS C86400
Category Copper Alloy
Class Cast
Type Leaded manganese bronze
Designations United States: UNS C86400, ASTM B584

Composition

ElementWeight %
Cu  59 
Pb  1 
Zn  40 

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) 448  25  (castings: centrifugal, die, permanent mold, plaster, sand) 
Yield Strength (Mpa) 172 
Elongation (%) 20 
Reduction in Area (%)  
Hardness (HB) 105  25  (as cast) 
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