CuNi 294 alloy CuNi44 copper nickel alloy Wire heating
resistance wireConstantan Wire Definition The copper-based low resistance heating alloy is widely used in
low-voltage circuit breaker, thermal overload relay, and other
low-voltage electrical product. It is one of the key materials of
the low-voltage electrical products. The materials produced by our
company have the characteristics of good resistance consistency and
superior stability. We can supply all kinds of round wire, flat and
sheet materials. Constantan Wire Definition
Resistance alloy 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 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.
Chemical Content, %
Ni |
Mn |
Fe |
Si |
Cu |
Other |
ROHS Directive |
Cd |
Pb |
Hg |
Cr |
44 |
1.50% |
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 |
Constantan Wire 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
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
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