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Due to high tensile strength and increased resistivity values, ELEKTRISOLA copper nickel alloy wires are the first choice for applications as resistance wires. With the different nickel amount in this product range, the characteristics of the wire can be chosen according to your requirements. Copper nickel alloy wires are available as bare wire, or enamelled wire with any insulation and self-bonding enamel. Furthermore, litz wire made of enamelled copper nickel alloy wire are available.
Physical Data
Density 8.9 g/cm3
Specific Heat 0.37(J/kg 20°C)
Electrical Resistivity 0.03×10-6ohm.m
Melting Point 1150°C
Maximum Operating Temperature 400°C
Coefficient of linear expansion (coeff 10-6/°C) 15.7 from 20 to 1000°C
Cu | CuNi2 | CuNi6 | CuNi10 | CuNi23Mn | CuNi44 | ||
Tensile strength | [N/mm²] | 220-300 | 260-360 | 270-370 | 300-390 | 500-550 | 560-680 |
Yield strength at 1% elongation | [N/mm²] | 120-200 | 140-240 | 160-220 | 140-250 | 200-330 | 400-500 |
Bending proof performance | [%] | 100 | 160 | 760 | |||
Resistance (IACS) | [%] | 101 | 34 | 17 | 12 | 6 | 3 |
Conductivity | [S*m/mm²] | 58.5 | 20.0 | 10.0 | 6.7 | 3.33 | 2.0 |
Resistivity | [Ohm*mm²/m] | 0.0171 | 0.05 | 0.10 | 0.1493 | 0.30 | 0.50 |
Thermal coefficient of resistance | [1E-6/K] | 3800-4100 | 1100-1600 | 500-900 | 350-400 | 150-200 | -80 - +40 |
Solderability | [-] | good | good | good | good | good | no conventional soldering |