C95500 / CDA 955 Bronze Alloy
| Element % | Nominal | Minimum | Maximum |
|---|---|---|---|
| Aluminum | 11 | 10 | 11.5 |
| Copper | 81 | 78 | – |
| Iron | 4 | 3 | 5 |
| Manganese | – | – | 3.5 |
| Nickel | 4 | 3 | 5.5 |
| Hardness BHN (3000 kg load) | – | 190 | – |
| Tensile Strength ksi | – | 95 | – |
| Yield Strength ksi (.5% ext. under load) | – | 42 | – |
| Elongation % in 2 inch | – | 10 | – |
The values listed above represent reasonable approximations suitable for general engineering use. Due to commercial variations in composition and to manufacturing limitations, they should not be used for specification purposes.
Applications :
Valve guides and seats in aircraft engines, corrosion resistant parts, bearings, bushings, gears, worm gears, pickling hooks and baskets, agitators.
Physical Properties :
| Thermal Conductivity | BTU/ (sq ft-ft-hr-F) | 24.2 |
| Specific Heat | BTU/lb/ºF @ 68F | .10 |
| Thermal Expansion | Per °F from 68 F to 572 F | .000009 |
| Density | lb/cu in @ 68 F | .272 |
| Electrical Conductivity* (Annealed) | % IACS @ 68 F | 8.5 |
| Modulus of Elasticity | KSI | 16,000 |
Fabrication Practices :
| Stress relieving temperature | 600 F or 316 C |
| Time at temperature | 1 hour per inch of section thickness |
| Responds to heat treatment | Yes |
| Solution heat treating temperature | 1585-1635 F or 860-890 C |
| Time at temperature | 1 hour per inch of section thickness |
| Quenching medium | Water or oil quench |
| Annealing temperature | 1150-1225 F or 620-660 C |
| Time at temperature | 1 hour per inch of section thickness |
| Machinability rating (Free Cutting Brass=100) | 50 |
| Suitability for being joined by: | Soldering/Good |
| Brazing/Fair | |
| Oxyacetylene Welding/Not Recommended | |
| Carbon Arc Welding/Poor | |
| Gas Shielded Arc Welding/Good | |
| Coated Metal Arc Welding/Good |