Constantan Konstantan Wire / CuNi44 Wire

Model NO.: CuNi44(Constantan)


Material: Copper and Nickel


Resistivity: 0.49+-5%


Elongation: >25%


State: Annealed and Hard


Other Name: Nc050


Transport Package: Spool/Coil, Carton, Wooden Case


Origin: China




Product Type: Wire


Carbon Content: No


Density: 8.9(g/cm3)


Melting Point: 1280


Surface: Bright


Trademark: Tankii


Specification: RoHS, ISO 9001


HS Code: 7409400000



Constantan Konstantan Wire/Cuni44 Wire






Constantan Wire Definition


Resistance alloy 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 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

Constantan Wire 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 0.01mm-7mm, Width 1mm-280mm


Package

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Product Categories : Copper Nickel Alloys > Constantan Wire