• Constant CuNi40 Resistance Alloy Wire/Constantan
  • Constant CuNi40 Resistance Alloy Wire/Constantan
  • Constant CuNi40 Resistance Alloy Wire/Constantan
  • Constant CuNi40 Resistance Alloy Wire/Constantan
  • Constant CuNi40 Resistance Alloy Wire/Constantan

Constant CuNi40 Resistance Alloy Wire/Constantan

Product Type: Wire
Material: CuNi Alloy Wire
Carbon Content: None
PCD: None
ET: None
Hole: None
Customization:

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Basic Info.

Model NO.
Constantan
Serves
Small Oreder Accepted
Sample Free
Available
Sample
Free
standard
GB/ASTM/JIS/BIS/DIN
Transport Package
Coil Cartons, Pallet, Spools, Coils
Specification
ROHS, SGS
Trademark
TANKII
Origin
China
HS Code
7223000000
Production Capacity
2000 Tons/Year

Product Description

Constant CuNi40 Resistance Alloy Wire/Constantan

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.
 
Chemical Content, %

Ni

Mn

Fe

Si

Cu

Other

ROHS Directive

Cd

Pb

Hg

Cr

44

1.50%

0.5

-

Bal

-

ND

ND

ND

ND
 

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
 
Constant CuNi40 Resistance Alloy Wire/Constantan
Constant CuNi40 Resistance Alloy Wire/Constantan
Constant CuNi40 Resistance Alloy Wire/Constantan
Constant CuNi40 Resistance Alloy Wire/Constantan


 

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