Constantan Strip and Foil CuNi44

• Product Type: Foil
• Material: CuNi44
• Carbon Content: Low Carbon
• Resistivity: 0.49
• Density(g/cm3): 8.9
• Ultimate Strength (≥ MPa): ≥410
• Model NO.: CuNi44
• Conductor Type: Solid
• Application: Resistance
• Ni%: 30%
• Elongation: ≥15 %
• Transport Package: Carton Box
• Specification: Base on customers′ request
• Trademark: Allotech
• Origin: China
• HS Code: 7408220000
• Production Capacity: 20 Tons Every Month

Product Description

 

Product Description

This copper-nickel resistance alloy, also known as constantan, is characterized by a high electrical resistance coupled with a fairly small temperature coefficient of the resistance. This alloy also shows high tensile strength and resistance towards corrosion. It can be used at temperatures of up to 600°C in air.

Product Details

Composition of material

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 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

Resistance alloy constantan wire material:  
Constantan, CuNi1, CuNi2, CuNi6, CuNi8, CuNi10, CuNi14, CuNi19, CuNi23, CuNi30, CuNi34, CuNi40 (6J40), CuNi44. 
Characteristics
Constantan has a number of special characteristics due to which it is known as the most versatile alloy that is available.  Some of its important characteristics are:
High specific heat resistance
Negligible temperature Coefficient
Easily ductile
Resistant to atmospheric corrosion
Can be easily soldered and molded