Solid Bare Copper Nickel Alloy Wire Pure Nickel Wire Bars OD 4 - 100mm

    Size 0.005mm * 100mm Constantan(CuNi40) Foil Use For Strain Foil

1. constantan 

Product Details: 
Grade: 6J40 also known as cuni40
Nature: With 40% nickel, 1.5% copper manganese alloy 

Constantan is a type of resistance alloy, which is made up of copper and nickel as the main components.

It has a low temperature coefficient of resistance (TCR), and a wide operating temperature range (below 500°C). It has 

good properities on mechanical working, high resistance of corrosion. It is used for variable and strain resistance of 

corrosion. It is used for variable and strain resisitance elements in alternative instruments.

Our products have the following features: Stable performance, high resistivity, high working temperature, allowable high surface load, small specific gravity and reasonable price. 

2. constantan dimension available

Wire: 0.018-10mm Ribbons: 0.05*0.2-2.0*6.0mm 
Strip: 0.005*5.0-5.0*250mm 
Bars: OD 4-100mm 

3. Chemical composition and main properties of constantan 

4. cuni resistance alloy application

CuNi alloy wires and strip typically used in heating cables, fuses, resistors and various types of controllers, electric car controller, the 

instruments and meters, the integrated circuit, the sample electric current, the resistor. And low pressure resistance and so on.

Constantan Tradenames:

Cuprothal, Alloy 294, Cuprothal 294, Nico, MWS-294, Cupron, Copel, Alloy 45,

Neutrology, Advance, CuNi 102, Cu-Ni 44, Konstantan

Resistance Alloy- Constantan Sizes / Temper Capabilities

Condition: Bright, Annealed, Soft 
Wire diameter 0.02mm-1.0mm packing in spool, big than 1.0mm packing in coil
Rod, Bar diameter 1mm-30mm 
Strip: Thickness 0.05mm-7mm, Width 1mm-280mm