Cuni10 Copper Nickel Alloy Wire Electric Heating Resistance
Copper Nickel Alloy is mainly made of copper and nickel. The copper and nickel can be melted together no matter what
percentage. Normally the resistivity of CuNi alloy will be higher if the Nickel content is larger than Copper content.
From CuNi1 to CuNi44, the resistivity is from 0.03μΩm to 0.49μΩm. That will help the resistor manufacture choosing
the most suitable alloy wire.
CUNI 90/10 is a copper-nickel alloy with low resistivity for use at temperatures up to 250°C.
Curpothal 15 is typically used for applications such as heating cables, fuses, shunts, resistors and various types of controllers.
Normal composition%
| Nickel | 10 | Manganese | - |
| Copper | Bal. |
Typical Mechanical properties(1.0mm)
| Yield strength | Tensile Strength | Elongation |
| Mpa | Mpa | % |
| 130 | 290 | 25 |
Typical Physical properties
| Density (g/cm3) | 8.9 |
| Electrical resistivity at 20ºC (Ωmm2/m) | 0.15 |
| Temperature factor of resistivity(20ºC~600ºC)X10-5/ºC | <50 |
| Conductivity coefficient at 20ºC (WmK) | 59 |
| EMF vs Cu(μV/ºC )(0~100ºC ) | -25 |
| Coefficient of thermal expansion | |
| Temperature | Thermal Expansion x10-6/K |
| 20 ºC- 400ºC | 17.5 |
| Specific heat capacity | |
| Temperature | 20ºC |
| J/gK | 0.380 |
| Melting point (ºC) | 1100 |
| Max continuous operating temperature in air (ºC) | 250 |
| Magnetic properties | non-magnetic |
Corrosion resistance performance
|
Alloys |
Working In atmosphere at 20ºC |
Working at max temperature 250ºC | |||||
|
Air and oxygen contain gases |
gases with Nitrogen |
gases with sulfur oxidability |
gases with sulfur reductibility |
carburization | |||
| CUNI10 | good | general | general | general | bad | good | |
Material: CuNi1, CuNi2, CuNi6, CuNi8, CuNi14, CuNi19, CuNi20, CuNi23, CuNi25, CuNi30, CuNi34, CuNi44.
CuNi10, also known as Cuprothal 15, is a copper-nickel alloy (CuNi alloy) with medium-low resistivity for low temperature resistances. The alloy is suitable for use at temperatures up to 500°C
CuNi10 is typically used for heating cables, fuses, resistors and various types of controllers.
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