Shanghai Unique Alloy Co.Ltd 

Focus on Copper Alloy 

Casting Tin Bronze C90700

 
Chemical Composition
  Element
Cu(1,2) Pb Sn Zn Fe P(3) Ni(4) Al S Sb Si
(1) Cu + Sum of Named Elements 99.4% min.(2) In determining Cu min., Cu may be calculated as Cu + Ni.(3) For continuous castings P shall be 1.5% max.(4) Ni value includes Co.
Min (%) 88.0   10.0                
Max (%) 90.0 0.50 12.0 0.50 0.15 0.30 0.50 0.005 0.05 0.20 0.005

Physical Properties

Melting Point - Liquidus°F 1830
Melting Point - Solidus°F 1528
Densitylb/cu in. at 68°F 0.317
Specific Gravity 8.77
Electrical Conductivity% IACS at 68°F 10
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 40.8
Coefficient of Thermal Expansion 68-39210 -6 per °F (68 – 392°F) 10.2
Specific Heat CapacityBtu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tensionksi 15000
Magnetic Permeability 1