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nickel alloys
, nichrome resistance wire
Alloy 294 Cuprothal 294 MWS-294 Cupron Nicr Alloy cupro nickel Cuprothal Eureca Flat Wire
cupro nickel Cuprothal, Alloy 294, Cuprothal 294, MWS-294, Cupron, Copel, Alloy 45, Eureca Flat Wire
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.
Chemical Content, %
Ni |
Mn |
Fe |
Si |
Cu |
Other |
ROHS Directive |
Cd |
Pb |
Hg |
Cr |
44 |
1.50% |
0.5 |
- |
Bal |
- |
ND |
ND |
ND |
ND |
Size
Wire: 0.018mm-10mm
Ribbon: 0.05*0.2mm-2.0*6.0mm
Strip: 0.5*5.0mm-5.0*250mm
Bar: 10-100mm
| Chemical Composition and Main Property of Cu-Ni Low Resistance Alloy |
| PropertiesGrade |
CuNi1 |
CuNi2 |
CuNi6 |
CuNi8 |
CuMn3 |
CuNi10 |
| Main Chemical Composition |
Ni |
1 |
2 |
6 |
8 |
_ |
10 |
| Mn |
_ |
_ |
_ |
_ |
3 |
_ |
| Cu |
Bal |
Bal |
Bal |
Bal |
Bal |
Bal |
| Max Continuous Service Temperature(ºC) |
200 |
200 |
200 |
250 |
200 |
250 |
| Resisivity at 20ºC (Ω*mm²/m) |
0.03 |
0.05 |
0.1 |
0.12 |
0.12 |
0.15 |
| Density(g/cm³) |
8.9 |
8.9 |
8.9 |
8.9 |
8.8 |
8.9 |
| Thermal Conductivity(α×10-6ºC) |
<100 |
<120 |
<60 |
<57 |
<38 |
<50 |
| Tensile Strength(Mpa) |
≥210 |
≥220 |
≥250 |
≥270 |
≥290 |
≥290 |
| EMF vs Cu(μVºC)(0~1000ºC) |
-8 |
-12 |
-12 |
-22 |
_ |
-25 |
| Approximate Melting Point(ºC) |
1085 |
1090 |
1095 |
1097 |
1050 |
1100 |
| Micrographic Structure |
austenite |
austenite |
austenite |
austenite |
austenite |
austenite |
| Magnetic Property |
non |
non |
non |
non |
non |
non |
| |
| PropertiesGrade |
CuNi14 |
CuNi19 |
CuNi23 |
CuNi30 |
CuNi34 |
CuNi44 |
| Main Chemical Composition |
Ni |
14 |
19 |
23 |
30 |
34 |
44 |
| Mn |
0.3 |
0.5 |
0.5 |
1 |
1 |
1 |
| Cu |
Bal |
Bal |
Bal |
Bal |
Bal |
Bal |
| Max Continuous Service TemperatureºC) |
300 |
300 |
300 |
350 |
350 |
400 |
| Resisivity at 20ºC (Ω*mm²/m) |
0.2 |
0.25 |
0.3 |
0.35 |
0.4 |
0.49 |
| Density(g/cm³) |
8.9 |
8.9 |
8.9 |
8.9 |
8.9 |
8.9 |
| Thermal Conductivity(α×10-6ºC) |
<30 |
<25 |
<16 |
<10 |
<0 |
<-6 |
| Tensile Strength(Mpa) |
≥310 |
≥340 |
≥350 |
≥400 |
≥400 |
≥420 |
| EMF vs Cu(μVºC)(0~1000ºC) |
-28 |
-32 |
-34 |
-37 |
-39 |
-43 |
| Approximate Melting Point(ºC) |
1115 |
1135 |
1150 |
1170 |
1180 |
1280 |
| Micrographic Structure |
austenite |
austenite |
austenite |
austenite |
austenite |
austenite |
| Magnetic Property |
non |
non |
non |
non |
non |
non |
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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