C95500 / CDA 955 Aluminum Bronze Alloys
Specification :
| CDA | ASTM | Asarcon | SAE | AMS | Federal | Military | Other |
|---|---|---|---|---|---|---|---|
| C955 | B505 B505M |
QQ-C-390, G3 | MIL-B-16033, Class 4 | Aluminum Bronze 9D |
Chemical Composition :
| Cu% | Fe% | Ni%1 | Al% | Mn% | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Chemical Composition according to ASTM B505/B505M-18
1Ni value includes Co.
Note: Cu + Sum of Named Elements, 99.5% min. Single values, unless otherwise noted, represent maximums.
|
|||||||||||
| 78.00 min |
3.00- 5.00 |
3.00- 5.50 |
10.00- 11.50 |
3.50 | |||||||
Machinability :
| Copper Alloy UNS No. | Machinability Rating | Density (lb/in3 at 68 °F) |
|---|---|---|
| C955 | 50 | 0.272 |
Mechanical Properties :
|
Mechanical Properties according to ASTM B505/B505M-18
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| Tensile Strength, min | Yield Strength, at .5% Extension Under Load, min | Elongation, in 2 in. or 50 mm min | Brinell Hardness (3000 kg load) | Remarks | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| ksi | MPa | ksi | MPa | % | typical BHN | ||||||
| 95 | 655 | 42 | 290 | 10 | 208 | ||||||
Physical Properties :
| US Customary | Metric | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Physical Properties provided by CDA
*As Cast, Field Strength 16 kA/m **TQ 50 Temper, Field Strength 16 kA/m
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| Melting Point – Liquidus | 1930 °F | 1054 °C | |||||||||
| Melting Point – Solidus | 1900 °F | 1038 °C | |||||||||
| Density | 0.272 lb/in3 at 68 °F | 7.53 gm/cm3 at 20 °C | |||||||||
| Specific Gravity | 7.53 | 7.53 | |||||||||
| Electrical Conductivity | 8% IACS at 68 °F | 0.049 MegaSiemens/cm at 20 °C | |||||||||
| Thermal Conductivity | 24.2 Btu/sq ft/ft hr/°F at 68 °F | 41.9 W/m at 20 °C | |||||||||
| Coefficient of Thermal Expansion 68-572 | 9 · 10-6 per °F (68-572 °F) | 15.5 · 10-6 per °C (20-300 °C) | |||||||||
| Specific Heat Capacity | 0.1 Btu/lb/°F at 68 °F | 419 J/kg at 293 °C | |||||||||
| Modulus of Elasticity in Tension | 16000 ksi | 110000 MPa | |||||||||
| Magnetic Permeability* | 1.32 | 1.32 | |||||||||
| Magnetic Permeability** | 1.2 | 1.2 | |||||||||
| Poisson’s Ratio | 0.32 | 0.32 | |||||||||
Fabrication Properties :
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Fabrication Properties provided by CDA
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| Joining Technique | Suitability | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Soldering | Good | ||||||||||
| Brazing | Fair | ||||||||||
| Oxyacetylene Welding | Not Recommended | ||||||||||
| Gas Shielded Arc Welding | Good | ||||||||||
| Coated Metal Arc Welding | Good | ||||||||||
Thermal Properties :
|
Thermal Properties provided by CDA
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| Treatment | Temp./Time – US | Temp./Time – SI | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Stress Temperature | 600 | 316 | |||||||||
| Solution Minimum | 1600 | 872 | |||||||||
| Solution Maximum | 1675 | 914 | |||||||||
| Solution Time | 1 | ||||||||||
| Solution Medium | Water | ||||||||||
| Precipitation Value | |||||||||||
| Precipitation Time | |||||||||||
| Precipitation Medium | |||||||||||
| Annealing Minimum | 1150 | 622 | |||||||||
| Annealing Maximum | 1225 | 663 | |||||||||
| Annealing Time | 1 | ||||||||||
| Hot Works Minimum | |||||||||||
| Hot Works Maximum | |||||||||||