ASTM B505
Typical Uses
Industrial Bearings, Railroad Applications, Acid Resisting Applications, Backs for Lined Journal Bearings for Passenger Cars, General Service Bearings for Moderate Pressure, Wearing Material for Rod Bushings, Wearing Material for Wedges, Wearing Material for Shoes, Railroad Engine Casings, Pumps, Industrial Centrifuges, Machine Parts, Low Friction, Moderate Pressure Bushings ,Pump Impellers for Acid Mine Water, Pump Bodies for Acid Mine Water, Freight Car Bearings, Backs for Lined Journal Bearings for Locomotives, Marine Large Bearings for Ships
C93900
Chemical Composition
(%max, unless shown as range or min)
| Cu | AI | Sb | Fe | Ni | Pb | Si | S | Sn | Zn | p |
| Min/Max | 76.5-79.5 | 0.005 | 0.50 | 0.40 | 0.80 | 14.0-18.0 | 0.005 | 0.08 | 5.00-7.00 | 1.50 | 1.5 |
Note: Cu + Sum of Named Elements, 99.0% min.
Applicable Specifications
* ASTM B505
Fabrication Processes
* Continuous Casting
Fabrication Properties
| Joining Technique | Suitabillity |
| Soldering | Good |
| Brazing | Poor |
| Oxyacetylene Welding | Not recommended |
| Gas Shielded Arc Welding | Not recommended |
| Coated Metal Arc Welding | Not recommended |
| Machinabillity | 80 |
Mechanical Properties (ASTM B505)
| Tensile Strength, minA | Yield Strength, at 0.5% Extension Under Load, minA | Elongation in 2 in.
or 50 mm, min, % |
| ksi | MPa | ksi | MPa |
| 25 | 172 | 16 | 110 | 5 |
* Minimum tensile strength and yield strength shall be reduced 10% for cast bars having a cross section, thickness, diameter, or wall of 4 in. (102 mm) or more. The cross sections are the diameter of a round solid, the distance across the flats of a solid hexagon, the thickness of a rectangle, and the wall thickness of a tube.
Physical Properties
| US Customary | Metric |
| Melting Point – Liquidus | 1730 F | 943 C |
| Melting Point – Solidus | 1570 F | 854 C |
| Incipient Melting | 600 F | 316 C |
| Density | 0.334 lb/in3 at 68 F | 9.25 gm/cm3 at 20 C |
| Specific Gravity | 9.25 | 9.25 |
| Electrical Conductivity | 11 %IACS at 68 F | 0.066 MegaSiemens/cm at 20 C |
| Thermal Conductivity | 30.20 Btu · ft/(hr · ft2·°F) at 68 F | 52.3 W/m ·°K at 20 C |
| Coefficient of Thermal Expansion | 10.3·10-6 per °F (68-212 F) | 18.5·10-6 per °C (20-100 C) |
| Specific Heat Capacity | 0.09 Btu/lb/°F at 68 F | 377.1 J/kg · °K at 20 C |
| Modulus of Elasticity in Tension | 11000 ksi | 75800 MPa |
| Magnetic Permeability | 1 | 1.0 |
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