C93200 High-Leaded Tin Bronze Alloy

A durable high-leaded tin bronze, C93200 is a cast alloy made up of copper, tin, and lead. It has good strength, wear resistance, and anti-friction properties. Because it resists corrosion well, it can be used in many different applications.

C93200 earned the name bearing bronze because its exceptional machinability has made it the alloy of choice in manufacturing bearings, bushings, and gears. Other applications include:

  • Bronze High-pressure hydraulic equipment
  • Bronze High-pressure steam equipment
  • Bronze Nuts
  • Bronze Piston rings
  • Bronze Pump impellers
  • Bronze Pump parts
  • Bronze Structural castings
  • Bronze Valve bodies

Diversified Bronze has solid and cored bronze bars in 144" lengths. Other lengths and non-standard sizes are available.

Technical details

C93200 is made up of 83% copper, 7% lead, 7% tin, and 3% zinc. The best welding techniques are brazing and soldering. We don't recommend using carbon arc, coated-metal arc, gas-shielded arc, or oxyacetylene.

C93200 High-Leaded Tin Bronze Alloy Properties

Physical
Property
Imperial
Metric
Density
0.323 lb/in
8.93 g/cm3
 
Mechanical
Property
Imperial
Metric
Brinell Hardness
65
65
Tensile strength
34,800 psi
240 MPa
Yield strength
18100 psi
125 MPa
Fracture strain
20%
20%
Machinability
70
70
Izod impact
5.9 ft.lb
8.0 J
Elastic modulus
16969 ksi
117 GPa
Poisson’s ratio
0.34
0.34
 
Thermal
Property
Imperial
Metric
Thermal expansion coefficient (@0-100°C/32-212°F)
10.0 µin/in°F
18.0 µm/m°C
Thermal conductivity (@20.0°C/68°F)
409 BTUin/hr.ft².°F
59.0 W/mK