CuNi44 /CN49W Alloy Wires Bright Annealed Resistance Wire DIN125
0.37mm for electric elements1. 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 |
| 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.
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
OTHER Chemical Composition 1. What's the minimum quantity customer can order?
If we have your size in stock, we can provide any quantity you
want.
If we do not have, for spool wire, we can produce 1 spool, about
2-3kg. For coil wire, 25kg.
2. How can you pay for small sample amount?
We have Western union account, wire transfer for sample amount also
ok.
3. Customer do not have express account. How will us arrange the
delivery for sample order?
Just need to provide your address information, we will check the
express cost, you can arrange the express cost together with sample
value.
4. What's our payment terms?
We can accept LC T/T payment terms, it also depending on delivery
and total amount. Let's talk more in details after getting your
detailed requirements.
5. Do you provide free samples?
If you want several meters and we have stock of your size, we can
provide, customer need to bear the International express cost.
6. What's our working time?
We will give you reply through email/phone Online contact tool
within 24 hours. No matter working day or holidays. Pls contact
with me whenever you need: Mobile: +86-18017457857 |
