Cu-Nickel Heating Wire- Constantan 6J40

The Nickel-Copper alloy wire used mainly for its medium range electrical resistivity and very low temperature-coefficient of resistance.

Applications include power resistors, shunts, thermocouples and wire-wound precision resistors having operating temperatures up to 400 degree.

Constantan 6J40 New Constantan Manganin Manganin Manganin
6J11 6J12 6J8 6J13
Main Chemical Elements % Mn 1~2 10.5~12.5 11~13 8~10 11~13
Ni 39~41 - 2~3 - 2~5
Cu REST REST REST REST REST
Al2.5~4.5 Fe1.0~1.6 Si1~2
Temperature Range for Components 5~500 5~500 5~45 10~80 10~80
Density 8.88 8 8.44 8.7 8.4
g/cm3
Resistivity 0.48 0.49 0.47 0.35 0.44
μΩ.m,20 ±0.03 ±0.03 ±0.03 ±0.05 ±0.04
Extensibility ≥15 ≥15 ≥15 ≥15 ≥15
%Φ0.5
Resistance -40~+40 -80~+80 -3~+20 -5~+10 0~+40
Temperature
Quotiety
α,10 -6 /
Thermoelectromotive 45 2 1 2 2