0.08*0.8mm Constantan Flat Wire/Copper Nickel Ribbon /Cuprothal 294 Tape/CuNi44 Alloy
Introduction
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.
| Performance Brand | NC020
CuNi14 | NC025
CuNi19 | NC030
CuNi23 | NC035
CuNi30 | NC040
CuNi34 | NC050
CuNi44 |
| Main Chemical Content% | Ni | 14.2 | 19 | 23 | 30 | 34 | 44 |
| Mn | 0.3 | 0.5 | 0.5 | 1.0 | 1.0 | 1.0 |
| Cu | Bal. | Bal. | Bal. | Bal. | Bal. | Bal. |
| Element Max Working TemperatureºC | 300 | 300 | 300 | 350 | 350 | 400 |
| Density g/cm3 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 | 8.9 |
| Resistivity Ωmm2/m, at 20ºC | 0.20±5% | 0.25±5% | 0.30±5% | 0.35±5% | 0.40±5% | 0.49±5% |
| Temperature factor of resistivity 10-5/ºC(200-600ºC) | <38 | <25 | <16 | <10 | -0 | <-6 |
| Melting Point ºC | 1115 | 1135 | 1150 | 1170 | 1180 | 1280 |
| Tensile Strength MPa | ≥310 | ≥340 | ≥350 | ≥400 | ≥400 | ≥420 |
| Enlogation%(>1.0) | ≥25 | ≥25 | ≥25 | ≥25 | ≥25 | ≥25 |
EMF VS Copper
V/ºC(0-100ºC) | -28 | -32 | -34 | -37 | -39 | -43 |
| Specific heat capacity j/gk(20ºC) | 0.38 | 0.38 | 0.38 | 0.39 | 0.40 | 0.41 |
| Conductivity coefficient w/mk at20ºC | 48 | 38 | 33 | 27 | 25 | 23 |
| Organizational attribute | Austenitic | Austenitic | Austenitic | Austenitic | Austenitic | Austenitic |
| Magnetic | None-Magnetic | None-Magnetic | None-Magnetic | None-Magnetic | None-Magnetic | None |
Applications
It is suilable for electrical resistors, potentiometers, heating wires, heating cables and underground heating mesh; braiding and shielding in flexible coaxial cable and communication cable, a variety of
audio and video cable, vehicle signal cable, network cable, data transmission cables ang so on.
OTHER Chemical Composition And Main Properties
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.
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0.08*0.8mm Constantan Flat Wire / Copper Nickel Ribbon / Cuprothal 294 Tape / CuNi44 Alloy Images
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