China CuNi40 Alloy Resistance Electric Copper Nickel Heating Wire Manufacture and Factory

CuNi40 Alloy Resistance Electric Copper Nickel Heating Wire

Short Description:

CuNi40 Alloy Resistance Electric Copper Nickel Heating 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.

Certificate: ISO 9001

Size: Customized

Serves: Small Oreder Accepted

Sample Free: Available

Size: 0.01-10mm

Density: 8.9g/cm3

OEM: yes

Elongation: 25%

standard: GB/ASTM/JIS/BIS/DIN

surface: Bright

Resisivity: 0.48

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CuNi40 Alloy Resistance Electric Copper Nickel Heating 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.

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