CuNi23
CuNi23 is a copper-nickel alloy (Cu77Ni23 alloy) with low resistivity for use at temperatures up to 300°C. It is typically used for applications such as heating cables, fuses, shunts, resistors and various types of controllers.
Chemical composition
Nickel % | Copper % | Manganese % |
23 | Bal. | 0.5 |
Typical mechanical properties (1.0mm)
Yield strength | Tensile Strength | Elongation |
Mpa | Mpa | % |
170 | 350 | 25 |
Typical physical properties
Density (g/cm3) | 8.9 |
Electrical resistivity at 20℃ (Ωmm2/m) | 0.30 |
Temperature factor of resistivity(20℃~600℃)X10-5/℃ | <16 |
7Conductivity coefficient at 20℃ (WmK) | 33 |
EMF vs Cu(μV/℃ )(0~100℃ ) | -37 |
Coefficient of thermal expansion
Temperature | Thermal Expansion x10-6/K |
20 ℃- 400℃ | 17.5 |
Specific heat capacity
Melting point (℃) | 1150 |
Max continuous operating temperature in air (℃) | 300 |
Magnetic properties | Non-magnetic |
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