CuNi23 Sheet (Plate strip) is a copper-nickel alloy strip (CuNi alloy) with medium resistivity for medium-low temperature resistances. The alloy is suitable for use at temperatures up to 400°C (750°F)
CuNi23 strip 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 strip is typically used in heating cables, fuses, resistors and various types of controllers.
CuNi23 Sheet (Plate strip) Chemical Composition
Alloy | Ni% | Mn% | Fe% | Cu% |
CuNi23 | Min 23 | Max 1.0 | - | Bal. |
CuNi23 Sheet (Plate strip) 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℃ |
CuNi23 Sheet (Plate strip) 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 |
