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C92300 Tin Bronze Casting
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.