CuNi23 wire is very malleable and has a good resistance to corrosion until temperatures of 400°C. Ideal applications areas are all types of resistances used at low temperature.
CuNi23 wire is typically used in heating cables, fuses, resistors and various types of controllers.
Chemical Composition
Alloy | Ni% | Mn% | Fe% | Cu% |
CuNi23 | Min 23 | Max 1.0 | - | Bal. |
Physical Data
Density | 8.9 g/cm3 |
Specific Heat | 0.37(J/kg 20℃) |
Electrical Resistivity | 0.03×10-6ohm.m |
Melting Point | 1150℃ |
Maximum Operating Temperature | 400℃ |
Coefficient of linear expansion (coeff 10-6/°C) | 15.7 from 20 to 1000℃ |
Typical Mechanical Properties
Cu | CuNi2 | CuNi6 | CuNi10 | CuNi23Mn | CuNi44 | ||
Tensile strength | [N/mm²] | 220-270 | 290-370 | 310-380 | 320-380 | 500-550 | 520-680 |
Yield strength at 1% elongation | [N/mm²] | 120-180 | 140-230 | 150-240 | 160-250 | 310-380 | 400-500 |
Bending proof performance | [%] | 100 | 125 | 145 | 160 | 390 | 350 |
Resistance (IACS) | [%] | 100 | 34 | 17 | 11 | 6 | 3 |
Conductivity | [S*m/mm²] | 58.5 | 20 | 10 | 6.7 | 3.3 | 2 |
Resistivity | [Ohm*mm²/m] | 0.0171 | 0.05 | 0.10 | 0.15 | 0.30 | 0.49 |
Thermal coefficient of resistance | [1E-6/K] | 3900-4000 | 1000-1600 | 500-900 | 350-400 | 150-200 | -80 - 40 |
Solderability | [-] | good | good | good | good | good | no conventional soldering |