Bright Constantan Strip (CuNi44Mn) Copper Nickel Electric
Resistance Heating Ribbon
Tankii, 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.
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.
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 |
Products and services
1). Pass: ISO9001 certification;
2). Fine after-sale services;
3). Small order accepted;
4). Samples available;
