Cast C90810
Tin bronze alloys, such as C90810, are typically found in gear, high-strength bushing and bearing applications where low speeds and heavy loads are present. Other high-strength applications for these alloys include pump impellers, piston rings, steam fittings and valve bodies. C90810 tin bronze castings are utilized in movable bridge components, turntables for bridges and other structures for fixed and expansion bearings with slow or intermittent movement with heavy loads.
Information
Product description: High tin bronze
Solids: 1” to 6” O.D.
Tubes: 1” to 6” O.D.
Rectangles: Up to 10”
Standard lengths: 144”
Shape/Form: semi-finished, mill stock or near-net shapes, anode, bar stock, billet/bloom, squares, hex, plate, profile or structural shape, flats/rectangular bar
Compliance: C90810 is compliant with key legislation including (1) Federal Safe Drinking Water Act 1974 - SDWA, (2) Federal Reduction of Lead in Drinking Water Act 2011 and (3) California AB1953
Typical uses
Industrial: bearings, gears, shafts, worm gears
Chemical composition
| Cu%1 | Pb% | Sn% | Zn% | Fe% | P%2 | Ni%3 | Al% | S% | Sb% | Si% |
|---|---|---|---|---|---|---|---|---|---|---|
| Rem. | 0.25 | 11.00-13.00 | 0.30 | 0.15 | 0.15-0.80 | 0.50 | 0.005 | 0.05 | 0.20 | 0.005 |
¹In determining Cu min., Cu may be calculated as Cu + Ni. ²For continuous castings, P shall be 1.5%, max. ³Ni value includes Co.
Note: Cu + sum of named elements, 99.4% min. Single values represent maximums.
Machinability
| Copper alloy UNS no. | Machinability rating | Density (lb / in³ at 68°F) |
|---|---|---|
| C90810 | 20 | 0.323 |
Mechanical properties
| Tensile strength, min | Yield strength, at 0.5% extension under load, min | Elongation, in 2 in. or 50 mm min | Brinell hardness (500 kg load) | Remarks | ||
|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | typical BHN | |
| 95 | ||||||