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UNS C87400
Category Copper Alloy
Class Cast
Type Silicon brass
Designations United States: UNS C87400, ASTM B584

Composition
ElementWeight %
Cu  83 
Zn  14 
Si  3 

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) 379  25  (castings: centrifugal, die, investment, permanent mold, plaster, sand) 
Yield Strength (Mpa) 165 
Elongation (%) 30 
Reduction in Area (%)  
Hardness (HB) 100  25  (as cast) 
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