Product
Product Details
C92700 Tin Bronze Casting
C92700 Tin Bronze Casting (UNS C92700) is a leaded tin bronze containing nominally 88% copper, 10% tin, and 2% lead, with no zinc addition. The lead improves machinability while maintaining high strength and corrosion resistance. Indicative price: US$ 9.80/kilogram (subject to quantity and specification).
C92700 Chemical Composition
| Element | Min % | Max % |
|---|---|---|
| Copper (Cu) | 86.0 | 89.0 |
| Tin (Sn) | 9.0 | 11.0 |
| Lead (Pb) | 1.5 | 2.5 |
| Zinc (Zn) | — | 0.50 |
| Nickel (Ni) | — | 1.0 |
| Iron (Fe) | — | 0.20 |
C92700 Mechanical Properties (Sand Cast – ASTM B584)
| Property | Value |
|---|---|
| Tensile Strength | 276 MPa (40,000 psi) min |
| Yield Strength | 138 MPa (20,000 psi) min |
| Elongation | 20% min |
| Brinell Hardness | 70 HB typical |
| Density | 8.77 g/cm³ |
| Melting Range | 832–1000°C (1530–1830°F) |
International Equivalents of C92700
| Standard | Designation | Common Name |
|---|---|---|
| USA – UNS | C92700 | Leaded Tin Bronze |
| 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
C92700 leaded tin bronze castings are used for: machinable bearings and bushings, pump components requiring tight tolerances, valve bodies and fittings, general engineering castings, and marine hardware components.