C93700 Tin Bronze Casting
C93700 Tin Bronze Casting (UNS C93700), known as High Leaded Tin Bronze 80-10-10, contains nominally 80% copper, 10% tin, and 10% lead. The high lead content provides exceptional lubricity and conformability, making it ideal for high-speed, low-load bearing applications. Indicative price: US$ 9.50/kilogram (subject to quantity and specification).
C93700 Chemical Composition
| Element |
Min % |
Max % |
| Copper (Cu) |
78.0 |
82.0 |
| Tin (Sn) |
9.0 |
11.0 |
| Lead (Pb) |
8.0 |
11.0 |
| Zinc (Zn) |
— |
0.80 |
| Nickel (Ni) |
— |
0.50 |
| Iron (Fe) |
— |
0.15 |
C93700 Mechanical Properties (Sand Cast – ASTM B584)
| Property |
Value |
| Tensile Strength |
221 MPa (32,000 psi) min |
| Yield Strength |
110 MPa (16,000 psi) min |
| Elongation |
15% min |
| Brinell Hardness |
55 HB typical |
| Density |
9.01 g/cm³ |
| Melting Range |
827–999°C (1520–1830°F) |
International Equivalents of C93700
| Standard |
Designation |
Common Name |
| USA – UNS |
C93700 |
High Leaded Tin Bronze (80-10-10) |
| UK – BS 1400 |
LB1 |
Leaded Bronze |
| Europe – EN 1982 |
CC495K |
CuPb10Sn10 |
| Germany – DIN |
2.1176 |
CuPb10Sn |
| ISO 1338 |
CuSn10Pb10 |
High Leaded Bronze |
| Japan – JIS H5111 |
CAC603 |
Leaded Bronze |
Typical Applications
C93700 high leaded tin bronze castings are used for: high-speed light-load bearings, automotive and industrial bushings, pump liners, printer and textile machinery bearings, and applications where lubrication may be intermittent.
← Back to Tin Bronze Casting
