Model NO.: CuNi40
Serves: Small Oreder Accepted
Sample Free: Available
Sample: Free
standard: GB/ASTM/JIS/BIS/DIN
Trademark: TANKII
Transport Package: Coil Cartons, Pallet, Spools, Coils
Specification: ROHS, SGS
Origin: China
HS Code: 7408229000
Model NO.: CuNi40
Serves: Small Oreder Accepted
Sample Free: Available
Sample: Free
standard: GB/ASTM/JIS/BIS/DIN
Trademark: TANKII
Transport Package: Coil Cartons, Pallet, Spools, Coils
Specification: ROHS, SGS
Origin: China
HS Code: 7408229000
CuNi40 Alloy Copper nickel comstantan strip WireProduct 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.
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Chemical Content, %
Ni |
Mn |
Fe |
Si |
Cu |
Other |
ROHS Directive |
|||
Cd |
Pb |
Hg |
Cr |
||||||
44 |
1.50% |
0.5 |
- |
Bal |
- |
ND |
ND |
ND |
ND Â |
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/mm2Â Â Annealed,Soft |
340~535 Mpa |
Tensile Strength,N/mm3Â Â 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  |
Our Services
a) We can provide high quality material, excellent design, precise manufacturing,complete specifications, considerate and integrity serivices.
b) Â We can provide all kinds of electric heating alloy material and elements, including customized products.
c) Â We can provide a complete solution for you.
d) Â OEM service can be provided.
e) Â Product selection
f) Â Process optimization
g) Â New product development




 CuNi40 Alloy Copper nickel comstantan strip Wire
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.
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Chemical Content, %
Ni |
Mn |
Fe |
Si |
Cu |
Other |
ROHS Directive |
|||
Cd |
Pb |
Hg |
Cr |
||||||
44 |
1.50% |
0.5 |
- |
Bal |
- |
ND |
ND |
ND |
ND Â |
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/mm2Â Â Annealed,Soft |
340~535 Mpa |
Tensile Strength,N/mm3Â Â 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  |
Our Services
a) We can provide high quality material, excellent design, precise manufacturing,complete specifications, considerate and integrity serivices.
b) Â We can provide all kinds of electric heating alloy material and elements, including customized products.
c) Â We can provide a complete solution for you.
d) Â OEM service can be provided.
e) Â Product selection
f) Â Process optimization
g) Â New product development




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