• Copper Nickel Alloy Constantan Resistance Wire CuNi44 (NC050)
  • Copper Nickel Alloy Constantan Resistance Wire CuNi44 (NC050)
  • Copper Nickel Alloy Constantan Resistance Wire CuNi44 (NC050)
  • Copper Nickel Alloy Constantan Resistance Wire CuNi44 (NC050)
  • Copper Nickel Alloy Constantan Resistance Wire CuNi44 (NC050)
  • Copper Nickel Alloy Constantan Resistance Wire CuNi44 (NC050)

Copper Nickel Alloy Constantan Resistance Wire CuNi44 (NC050)

Type: Copper Wire
Application: Resistance
Material: CuNi
Shape: Round
Alloy: Alloy
Color: Bright
Customization:
Diamond Member Since 2018

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Manufacturer/Factory, Trading Company

Basic Info.

Model NO.
CuNi44
Standard
GB/T
Surface
Golden
Condition
Soft 1/4h 1/2h H
Dimensions
0.02~6.0mm
Resistivity
0.48±0.03
Density(g/cm3)
8.9
Ultimate Strength (≥ MPa)
≥410
Conductor Type
Solid
Ni%
39-41
Elongation
≥15 %
Transport Package
Carton Box
Specification
Base on customers′ request
Trademark
Allotech
Origin
China
HS Code
7408220000
Production Capacity
20 Tons Every Month

Product Description

Constantan Wire with moderate resistivity and low temperature coefficent of resistance with a flat resistance/temperature curve over a wider range than the "manganins". Constantan also shows better corrosion resistance than the man ganins. Uses tend to be restricted to ac circuits.

Constantan wire is also the negative element of the type J thermocouple with Iron being the positive; type J thermocouples are used in heat treating applications. Also, it is the negative element of the type T thermocouple with OFHC Copper the positive; type T thermocouples are used at cryogenic temperatures. 

Copper nickel alloy series:Constantan CuNi40 (6J40), CuNi1, CuNi2, CuNi6, CuNi8, CuNi10, CuNi14, CuNi19, CuNi23,CuNi30, CuNi34, CuNi44.

Size dimension range:
Wire: 0.1-10mm
Ribbons: 0.05*0.2-2.0*6.0mm 
Strip: 0.05*5.0-5.0*250mm 

Main grades and properties 

Type Electrical resistivity
(20degreeΩ
mm²/m)
temperature coefficient of resistance
(10^6/degree)
Dens
ity
g/mm²
Max. temperature
(°c)
Melting point
(°c)
CuNi1 0.03 <1000 8.9 / 1085
CuNi2 0.05 <1200 8.9  
200
1090
CuNi6 0.10 <600 8.9 220 1095
CuNi8 0.12 <570 8.9 250 1097
CuNi10 0.15 <500 8.9 250 1100
CuNi14 0.20 <380 8.9 300 1115
CuNi19 0.25 <250 8.9 300 1135
CuNi23 0.30 <160 8.9 300 1150
CuNi30 0.35 <100 8.9 350 1170
CuNi34 0.40 -0 8.9 350 1180
CuNi40 0.48 ±40 8.9 400 1280
CuNi44 0.49 <-6 8.9 400 1280

Mechanical Properties

Max Continuous Service Temp

400ºC

Resisivity at 20ºC

0.49±5%ohm mm2/m

Density

8.9 g/cm3

Thermal Conductivity

-6(Max)

Melting Point

1280ºC

Tensile Strength,N/mm2   Annealed,Soft

340~535 Mpa

Tensile Strength,N/mm3   Cold Rolled

680~1070 Mpa

Elongation(anneal)

25%(Min)

Elongation(cold rolled)

≥Min)2%(Min)

EMF vs Cu, μV/ºC (0~100ºC)

-43

Micrographic Structure

austenite

Magnetic Property

Non

Copper Nickel Alloy Constantan Resistance Wire CuNi44 (NC050) Copper Nickel Alloy Constantan Resistance Wire CuNi44 (NC050)

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