Cast C95400
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 common sizes of rounds, tubes and rectangles. Aluminum in conjunction with iron and nickel 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: 1/2” to 10” O.D.
TUBES: 1” to 16” O.D.
RECTANGLES: Up to 20”
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
Typical Uses
BUILDING: heavy construction equipment
FASTENERS: swivel
INDUSTRIAL: bearings, bushings, gear blanks, gears, piston rings, pump bodies, pump impellers, valve bodies, valves
PLUMBING: steam fittings
Similar or Equivalent Specification
| CDA | ASTM | SAE | AMS | Federal | Military | Other |
|---|---|---|---|---|---|---|
| C95400 | B505 B505M | J461 J462 | QQ-C-390, G5; QQ-B-671, Class 3 | MIL-B-16033, Class 3 | Aluminum Bronze 9C |
Chemical Composition
| Cu% | Fe% | Ni%1 | Al% | Mn% |
|---|---|---|---|---|
| 83.00 min | 3.00-5.00 | 1.50 | 10.00-11.50 | 0.50 |
Chemical Composition according to ASTM B505/B505M-18
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) |
|---|---|---|
| C95400 | 60 | 0.269 |
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 | |
| 85 | 586 | 32 | 221 | 12 | 170 | |
Mechanical Properties according to ASTM B505/B505M-18
Physical Properties
| US Customary | Metric | |
|---|---|---|
| Melting Point - Liquidus | 1900 °F | 1038 °C |
| Melting Point - Solidus | 1880 °F | 1027 °C |
| Density | 0.269 lb/in³ at 68 °F | 7.45 gm/cm³ at 20 °C |
| Specific Gravity | 7.45 | 7.45 |
| Electrical Conductivity | 13% IACS at 68 °F | 0.075 MegaSiemens/cm at 20 °C |
| Thermal Conductivity | 33.9 Btu/sq ft/ft hr/°F at 68 °F | 58.7 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 20 °C |
| Modulus of Elastic in Tension | 15500 ksi | 107000 MPa |
| Magnetic Permeability* | 1.27 | 1.27 |
| Magnetic Permeability** | 1.2 | 1.2 |
Physical Properties provided by CDA
*As cast, field strength 16 kA/m **TQ 50 temper, field strength 16 kA/m
Fabrication Properties
| Technique | Suitability |
|---|---|
| Soldering | Good |
| Brazing | Good |
| Oxyacetylene Welding | Not Recommended |
| Gas Shielded Arc Welding | Good |
| Coated Metal Arc Welding | Good |
| Machinability Rating | 60 |
Thermal Properties
| Treatment | Min* | Max* | Value* | Time** | Medium |
|---|---|---|---|---|---|
| Stress Relief | 600 | ||||
| Solution Treatment | 1600 | 1675 | 1 | Water | |
| Annealing | 1150 | 1225 | 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.