Constantan resistance alloy strip (CuNi40)

• Product Type: Strip
• Material: Constantan
• Carbon Content: Low Carbon
• PCD: No
• ET: No
• Hole: No
• Model NO.: 6j40
• use: resistor
• Component applicable temperature range: 5~500ºC
• density: 8.88G/M³
• Resistivity: 0.48 ohm*mm2/m
• thickness: 0.005mm Min.
• width: 1.0mm Min.
• Surface: bright
• purity: 44% Ni
• Transport Package: Stainless Steel Tube, Bubble Film
• Specification: Rohs
• Trademark: TANKII
• Origin: China
• HS Code: 7502109000
• Production Capacity: 1000 Kgs/Month

Product Description

Constantan resistance alloy strip (CuNi40)

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.
Our company produce alloy foil, metal foil, steel foil thickness 0.005mm-0.1mm(5um-100um), width 1mm-1330mm.
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

We usually produce constantan foil, nichrome foil, pure nickel foil, FeCrAl alloy foil, resistance foil, NiFe foil, invar foil. Resistohm 135 foil.

If you have any requirement, pls be free to tell us.

Shanghai Tankii Alloy Material Co., Ltd.