Shanghai Unique Alloy Co.Ltd 

Focus on Copper Alloy 

Casting Special Copper Alloy C99300 

 

 

 
 Chemical Composition
  Element
Cu(1) Pb Sn Fe Ni Al Co Si
(1) Cu + Sum of Named Elements 99.7% min.
Min (%)       0.40 13.5 10.7 1.0  
Max (%) Rem 0.02 0.05 1.0 16.5 11.5 2.0 0.02

Physical Properties

Melting Point - Liquidus°F 1970
Melting Point - Solidus°F 1955
Densitylb/cu in. at 68°F 0.275
Specific Gravity 7.61
Electrical Conductivity% IACS at 68°F 9
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 25
Coefficient of Thermal Expansion 68-57210-6 per °F (68 – 572°F) 9.2
Specific Heat CapacityBtu/ lb /°F at 68°F 0.1
Modulus of Elasticity in Tensionksi 18000