Product
Product Details
C90700 Tin Bronze Casting
C90700 Tin Bronze Casting is a high-tin copper alloy (UNS C90700) containing nominally 89% copper and 11% tin, with no zinc or lead additions. Known for excellent hardness and wear resistance, C90700 is used for gears, worm wheels, and high-load bearing applications. Electrical Accessories India supplies C90700 sand castings and centrifugal castings. Indicative price: US$ 10.00/kilogram (subject to quantity and specification).
C90700 Chemical Composition
| Element | Min % | Max % |
|---|---|---|
| Copper (Cu) | 88.0 | 90.0 |
| Tin (Sn) | 10.0 | 12.0 |
| Lead (Pb) | — | 0.50 |
| Zinc (Zn) | — | 0.50 |
| Nickel (Ni) | — | 0.50 |
| Iron (Fe) | — | 0.15 |
C90700 Mechanical Properties (Sand Cast – ASTM B584)
| Property | Value |
|---|---|
| Tensile Strength | 303 MPa (44,000 psi) min |
| Yield Strength | 152 MPa (22,000 psi) min |
| Elongation | 10% min |
| Brinell Hardness | 85 HB typical |
| Density | 8.77 g/cm³ |
| Melting Range | 827–1000°C (1520–1830°F) |
International Equivalents of C90700
| Standard | Designation | Common Name |
|---|---|---|
| USA – UNS | C90700 | High Tin Bronze (89-11) |
| UK – BS 1400 | PB1 | Phosphor Bronze |
| Europe – EN 1982 | CC490K | CuSn10 |
| Germany – DIN | 2.1050 | CuSn10 |
| ISO 1338 | CuSn10 | Tin Bronze |
| Japan – JIS H5111 | CAC403 | Tin Bronze |
Typical Applications
C90700 tin bronze castings are preferred for: gears and worm wheels, high-load bushings and bearings, bridge plates and expansion joints, piston rings, and heavily loaded slow-speed bearings.