C71000 copper bar is a high-performance alloy copper material whose main components include copper (residual), nickel (19.0~23.0%), iron (0.5~1.0%), etc. It conforms to standards such as ASTM B111-1992, B122-1990, and B206M-1987 (1992, 1993 editions). It has a copper content of not less than 99.9%, ensuring excellent electrical conductivity and thermal efficiency in a variety of industrial applications, as well as high strength and excellent corrosion resistance, suitable for the manufacture of electrical equipment, chemical equipment, marine equipment and aerospace equipment.
In addition, C71000 copper bar has good hot and cold machinability and can be processed both hot and cold and soldered, which makes it very flexible in the manufacturing process. It is used in a wide range of applications, including communication relays, electric cathode springs, condenser bushings, heat exchanger bushings, etc. It is also used in the manufacture of electrical equipment such as wires, cables, and electrical contactors, making it an ideal choice for a wide variety of industrial applications.
| Melting Point – Liquidus°F | 2190 |
|---|---|
| Melting Point – Solidus°F | 2100 |
| Densitylb/cu in. at 68°F | 0.323 |
| Specific Gravity | 8.94 |
| Electrical Conductivity% IACS at 68°F | 6.5 |
| Thermal ConductivityBtu/ sq ft/ ft hr/ °F at 68°F | 21 |
| Coefficient of Thermal Expansion 68-57210 to -6 power per °F (68 – 572°F) | 9.1 |
| Specific Heat CapacityBtu/ lb /°F at 68°F | 0.09 |
| Modulus of Elasticity in Tensionksi | 20000 |
| Modulus of Rigidityksi | 7500 |
