C92300 Tin Bronze Casting
C92300 Tin Bronze Casting (UNS C92300) contains nominally 87% copper, 8% tin, 1% lead, and 4% zinc. It offers a good combination of strength, wear resistance, and machinability, suitable for general engineering and moderate-load bearing applications. Indicative price: US$ 9.00/kilogram (subject to quantity and specification).
C92300 Chemical Composition
| Element |
Min % |
Max % |
| Copper (Cu) |
85.0 |
89.0 |
| Tin (Sn) |
7.5 |
9.0 |
| Lead (Pb) |
0.3 |
1.5 |
| Zinc (Zn) |
2.5 |
5.0 |
| Nickel (Ni) |
— |
1.0 |
| Iron (Fe) |
— |
0.25 |
C92300 Mechanical Properties (Sand Cast – ASTM B584)
| Property |
Value |
| Tensile Strength |
310 MPa (45,000 psi) min |
| Yield Strength |
152 MPa (22,000 psi) min |
| Elongation |
18% min |
| Brinell Hardness |
70 HB typical |
| Density |
8.77 g/cm³ |
| Melting Range |
854–1000°C (1570–1830°F) |
International Equivalents of C92300
| Standard |
Designation |
Common Name |
| USA – UNS |
C92300 |
Leaded Tin Bronze |
| UK – BS 1400 |
LG2 |
Leaded Gunmetal |
| Europe – EN 1982 |
CC482K |
CuSn7Zn2Pb3 |
| Germany – DIN |
2.1090 |
CuSn7ZnPb |
| ISO 1338 |
CuSn6Zn6Pb3 |
Leaded Tin Bronze |
| Japan – JIS H5111 |
CAC406 |
Gunmetal |
Typical Applications
C92300 tin bronze castings are used for: general engineering bearings and bushings, pump bodies and impellers, valve bodies, marine hardware, and moderate-duty gear castings.
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