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Product Details
C90500 Tin Bronze Casting
C90500 Tin Bronze Casting is a copper-tin-zinc alloy (UNS C90500) widely known as Gun Metal, containing nominally 88% copper, 10% tin, and 2% zinc. Electrical Accessories India manufactures C90500 sand castings, centrifugal castings, and continuous cast bars for high-strength bearings, marine applications, and pressure-tight components. Indicative price: US$ 9.50/kilogram (subject to quantity and specification).
C90500 Chemical Composition
| Element | Min % | Max % |
|---|---|---|
| Copper (Cu) | 86.0 | 89.0 |
| Tin (Sn) | 9.0 | 11.0 |
| Zinc (Zn) | 1.0 | 3.0 |
| Lead (Pb) | — | 0.30 |
| Nickel (Ni) | — | 1.0 |
| Iron (Fe) | — | 0.20 |
C90500 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 | 16% min |
| Brinell Hardness | 75 HB typical |
| Density | 8.70 g/cm³ |
| Melting Range | 832–1000°C (1530–1830°F) |
International Equivalents of C90500
| Standard | Designation | Common Name |
|---|---|---|
| USA – UNS | C90500 | Gun Metal |
| UK – BS 1400 | LG4 | Leaded Gunmetal |
| Europe – EN 1982 | CC491K | CuSn10Pb2 |
| Germany – DIN | 2.1052 | CuSn10Pb |
| ISO 1338 | CuSn10 | Tin Bronze |
| Japan – JIS H5111 | CAC407 | Tin Bronze |
Typical Applications
C90500 Gun Metal castings are used for: high-strength bearings and bushings, marine propeller hubs and fittings, pressure-tight valve bodies, pump casings and impellers, steam and hydraulic fittings, gears and worm wheels.