Shanghai Unique Alloy Co.Ltd 

Focus on Copper Alloy 

Casting High Leaded Tin Bronze C93400

Chemical Composition
  Element
Cu(1,2) Pb Sn Zn Fe P(3) Ni(4) Al S Sb Si
(1) In determining Cu min., Cu may be calculated as Cu + Ni.(2) Cu + Sum of Named Elements 99.0% min.(3) For continuous castings P shall be 1.5% max.(4) Ni value includes Co.
Min (%) 82.0 7.0 7.0                
Max (%) 85.0 9.0 9.0 0.8 0.20 0.50 1.0 0.005 0.08 0.50 0.005
Mechanical Properties*
Form Temper Temper Code Tensile Strength
(ksi)		 YS-0.5% Ext
(ksi)		 Elongation
(%)		 Izod
(ft-lbs)		 Compressive Strength .1 in. set/in.
(ksi)		 Fatigue Strength**
(ksi)		 Proportional Limit
(ksi)		 Brinell Hardness, 500 kg load
As Continuous Cast     34   Min for Standard 20   Min for Standard 8   Min for Standard          
As Sand Cast As Sand Cast M01 25   Min
32   Typ		 12   Min
16   Typ		 8   Min
20   Typ		 5   Typ 48   Typ 15   Typ 8   Typ 60   Typ
* Measured at room temperature, 68°F (20°C).** Fatigue Strength: 100 x 106 cycles, unless indicated as [N] x 106.
Physical Properties
Densitylb/cu in. at 68°F 0.32
Specific Gravity 8.86
Electrical Conductivity% IACS at 68°F 12
Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F 33.6
Coefficient of Thermal Expansion 68-39210-6 per °F (68 – 392°F) 10
Specific Heat CapacityBtu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tensionksi 11000