Product name: CuSn3Zn8Pb
Main alloying elements: Copper (Cu), Tin (Sn), Zinc (Zn), Lead (Pb)
Mechanical Characteristics:
Tensile strength: 290 - 400 MPa (megapascals)
Yield strength: 150 - 250 MPa
Elongation at break: 8 - 20%
Hardness (Rockwell): -
Modulus of elasticity: 90 - 110 GPa
Physical Properties:
Density: 8.8 g/cm³
Melting point: approx. 890 - 950 °C
Thermal conductivity: 40 - 60 W/(m K)
Electrical conductivity: 25 - 35% IACS (International Annealed Copper Standard)
Chemical composition (in percent by weight):
Copper (Cu): approx. 84 - 87%
Tin (Sn): approx. 2.5 - 3.5%
Zinc (Zn): approx. 8 - 9.5%
Lead (Pb): approx. 1.5 - 2.5%
Heat treatment:
CuSn3Zn8Pb is not typically heat treated as it has a good combination of strength and ductility in the as cast condition. However, a heat treatment can be performed to adjust the mechanical properties.
Corrosion resistance:
CuSn3Zn8Pb offers good corrosion resistance in atmospheres, freshwater and seawater. However, it is susceptible to corrosion in acidic or alkaline environments.
Applications:
CuSn3Zn8Pb is used in various applications including:
Bearings: plain bearings, bearing bushes
Pump and valve parts: housing, rotors, wear rings
Electrical engineering: connectors, contacts
General mechanical engineering: transmission components, gears
Please note that the values given are indicative and may vary slightly depending on the manufacturing process and specific batch. It is recommended to always check the manufacturer's exact specifications.
