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copper nickel Alloy Constantan Cupro-Nickel CuNi44 Strip/Foil/Ribbon

Basic Info

Model No.:  Constantan foil

Product Description

Model NO.: Constantan foil Material: CuNi Alloy PCD: 380Min Hole: 0 Sample: Sample Available standard: GB/ASTM/JIS/BIS/DIN Elongation: 25% State: Soft 1/4hard 1/2hard hard T-hard MOQ: 5kilograms Transport Package: Coil Cartons, Pallet, Spools, Coils Origin: China Product Type: Wire Carbon Content: None ET: 0 Serves: Small Oreder Accepted surface: bright density: 8.9g/cm3 purity: 44%Ni OEM: Yes Trademark: TANKII Specification: 0.01-3mm*0.3-600mm HS Code: 7409400000 Constantan As a big manufacturer and exporter in China on the line of electric resistance alloy, we can supply all kinds of electric resistance alloy wire and strips (resistance steel wire and strips),
Material: CuNi1, CuNi2, CuNi6, CuNi8, CuNi14, CuNi19, CuNi23, CuNi30, CuNi34, CuNi44.

1. CuNi44, also called Constantan, has a very low temperature coefficient, high electrical resistance, high ductility and non-corroding properties. It is suitable for use at temperatures up to 600° C (1110° F). As a very malleable, very ductile alloy, it has a very good resistance to oxidation.

The alloy is non-magnetic. It is suitable for electrical resistors, potentiometers, heating wires, heating cables and mats. Ribbons are used for heating of bimetals. Another field of application is manufacturing of thermocouples because it develops a high electromotive force (EMF) in association with others metals.

2. Chemical Composition
Alloy Ni% Mn% Fe% Cu%
CuNi44 43 Max 0.5 - Bal.

3. Products and services
1. Pass: ISO9001 certification;
2. Fine after-sale services;
3. Small order accepted;
4. Samples available;

4. Size
Wires: 0.018-10mm Ribbons: 0.05*0.2-2.0*6.0mm
Strips: 0.08*5.0-5.0*250mm Bars: D10-100mm
Chemical Content, %
Ni Mn Fe Si Cu Other ROHS Directive
Cd Pb Hg Cr
44 1% 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
Application of Constantan
Constantan is a copper-nickel alloy that contains specific minor amounts of additional
elements to achieve precise values for the temperature coefficient of resistivity. Careful
control of melting and conversion practices results in a very low level of pinholes at
ultra-thin thicknesses. The alloy is used extensively for foil resistors and strain gauges.

Shanghai Tankii Alloy Material Co., Ltd.specialized in production of Resistance Heating Alloy, Nickel Chromium Alloy, Iron Chromium Aluminum Alloy, Nickel Aluminum Alloy, Magnin, Copper Nickel Alloy, Thermocouple Wire, Pure Nickel and other precision alloy materials in the form of round wire, ribbon wire, sheet, tape, strip, rod and plate.
We've already got ISO9001 quality system certificate and approval of ISO14001 environmental protection system.
We own a complete set of advanced production flow of refining, cold reduction, drawing and heat treating etc. We also proudly have independent R&D capacity.
Shanghai Tankii Alloy Material Co., Ltd has accumulated lots of experiences over nine years in this field. During nine years, more than 60 management elites and high science and technology talents were employed.They participated in every walk of the company life, which make our company keep blooming and invincible in the competitive market.
Based on the principle of "first quality, sincere service", our managing ideology is pursuing technology innovation and creating the top brand in the alloy field. We persist in Quality - the foundation of the survival. It is our forever ideology to serve you with full heart and soul. We committed to provide customers all over the world with high-quality, competitive products and perfect service.
Our products, such us Nichrome Wire, Nichrome Strip, fecral wire, fecral strip, thermocouple wire, Nickel Wire, nickel strip have been exported to Europe, USA, India, Southest Asia, South America,etc.

Contact us if you need more details on Constantan Foil. We are ready to answer your questions on packaging, logistics, certification or any other aspects about Constantan Strip、Electrical Resistance Alloy Foil. If these products fail to match your need, please contact us and we would like to provide relevant information.

Product Categories : Copper Nickel Alloys > CuNi Resistance Alloy Strip

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