High-Leaded Tin Bronze
SAE 64 83-10-10
Bunting continuous cast bronze bars of C93700 give superior quality and performance. Continuous
casting achieves a high density grain structure, free of porosity, resulting in a reduction of tool wear and
Solid and cored bars are stocked in 13" increments and 105" lengths, and are available in other
lengths and non-standard sizes. Consider bars for use when you need special bearings, bearings for
prototypes, or for emergency repairs.
Typical Properties: (Not to be used for specification purposes.)
Copper: 78.00 – 82.00%
Tin: 9.00 – 11.00%
Lead: 8.00 – 11.00%
Physical Properties: Continuous Cast
Tensile Strength, PSI: 35,000 min.
Yield Strength, PSI: 20,000 min.
Elongation: 6% min.
Brinell Hardness (500 kg load): 60 typical
Machinability Rating 80
Minimum Operating Temperature -450°F
Maximum Operating Temperature 500°F
C93700 has higher tin and lead than C93200 and is used in bearings with higher speeds and loads. It
has increased corrosion and oxidation resistance, with good anti-frictional properties, good load-carrying
ability and excellent machinability. C93700 can be used in applications where lubrication may be low or