Strain Gauge Copper Nickel Alloys , Precision Resistance Constantan
Foil 0.005 x 100 mm
OhmAlloy49(Resistance heating wire and resistance wire)
(Common Name:CuNi44,NC50.Cuprothal, Alloy 294, Cuprothal 294, Nico,
MWS-294, Cupron, Copel, Alloy 45, Neutrology, Advance, CuNi 102,
Cu-Ni 44, Konstantan,constantan.)
Grade: Constantan Resistance Alloy (Ohmalloy49)
Chemical Composition: Ni:44% Cu: Rest%
Max. continuous service temp. of element(°C) :400degrees
Resistivity at 20ºC(μΩ·m):0.49 ohm mm2/m
NiCr series: CuNi1;CuNi2;CuNi6;CuNi8;CuNi10;CuNi14;CuNi19;
Typical Mechanical properties(1.0mm)
|Yield strength||Tensile Strength||Elongation|
Typical Physical properties
|Electrical resistivity at 20℃ (Ωmm2/m)||0.49|
|Temperature factor of resistivity(20℃~600℃)X10-5/℃||-6|
|Conductivity coefficient at 20℃ (WmK)||23|
|EMF vs Cu(μV/℃ )(0~100℃ )||-43|
|Melting point (℃)||1280|
|Max continuous operating temperature in air (℃)||400|
Corrosion resistance performance
|Alloys||Working In atmosphere at 20℃||Working at max temperature 200℃|
Air and oxygen contain
|gases with Nitrogen|
gases with sulfur
gases with sulfur
Style of supply
1. What's the minimum quantity customer can order?
If we have your size in stock, we can provide any quantity you
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
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
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
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.