Cast C95900
Aluminum bronze is the highest strength standard copper-based alloy. Randall Bearings produces C95400, C95500, AMS 4880-C95510 and C95900 aluminum bronze alloys as standard-stocked products in standard sizes of rounds, tubes and rectangles. Aluminum in conjunction with iron and nickel in C959 acts as a strengthener in these alloys. All of the aluminum bronzes can be heat treated, further increasing tensile strengths.
Information
Product description: Aluminum bronze
Solids: 1” to 5” O.D.
Tubes: Consult Mill
Rectangles: Up to 7”
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: C95900 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: gears, worm drives
Similar or equivalent specification
| CDA | ASTM | SAE | AMS | Federal | Military | Other |
|---|---|---|---|---|---|---|
| C95900 | B505 B505M |
Chemical composition
| Cu% | Fe% | Ni%1 | Al% | Mn% |
|---|---|---|---|---|
| Rem. | 3.00-5.00 | 0.50 | 12.00-13.50 | 1.50 |
Chemical composition according to ASTM B505/B505M-23
¹Ni value includes Co.
Note: Cu + sum of named elements, 99.5% min. Single values represent maximums.
Machinability
| Copper alloy UNS no. | Machinability rating | Density (lb / in³ at 68°F) |
|---|---|---|
| C95900 | 10 | 0.255 |
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 | |
| 241 | ||||||
Mechanical properties according to ASTM B505/B505M-23
Thermal properties
| Treatment | Min* | Max* | Value* | Time** |
|---|---|---|---|---|
| Stress relief | 600 | |||
| Solution treatment | 0 | |||
| Annealing | 1100 | 1300 | 1 |
Thermal properties provided by CDA
*Temperature is measured in Fahrenheit. **For stress relief, solution treatment and annealing - time is measured in hours/inch of thickness. For precipitation heat treatment - time is measured in hours.