Cuprothal 294 , Constantan Foil Size 0.005mm * 100mm Use For Strain Foil
2. Product Description
Constantan is a type of resistance alloy, which is made up of copper and nickel as the main components.
It has a low temperature coefficient of resistance (TCR), and a wide operating temperature range (below 500°C).
It has good properities on mechanical working, high resistance of corrosion. It is used for variable and strain
resistance of corrosion. It is used for variable and strain resisitance elements in alternative instruments.
Our products have the following features: Stable performance, high resistivity, high working temperature, allowable high surface load, small specific gravity and reasonable price.
3. constantan dimension available
Wire: 0.018-10mm Ribbons: 0.05*0.2-2.0*6.0mm
Strip: 0.005*5.0-5.0*250mm
Bars: OD 4-100mm
Chemical Content, %
| Ni | Mn | Fe | Si | Cu | Other | ROHS Directive |
| Cd | Pb | Hg | Cr |
| 40 | 1.50% | - | - | Bal | - | ND | ND | ND | ND |
Mechanical Properties
| Max Continuous Service Temp | 400℃ |
| Resisivity at 20℃ | 0.48±3%ohm mm2/m |
| Density | 8.9 g/cm3 |
| Thermal Conductivity | -6(Max) |
| Melting Point | 1280℃ |
| 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 |
| TCR | -40~+40 |
Constantan 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
1; Condition: Bright, Annealed, Soft
2; Wire diameter 0.02mm-1.0mm packing in spool, big than 1.0mm packing in coil
3; Rod, Bar diameter 1mm-30mm
4; Strip: Thickness 0.005mm-7mm, Width 1mm-280mm
FAQ
Q1.Do you attend exhibition every year?
A .Yes
Q2.Is there any discount of the nickel wire?
A. Yes. Bigger quantity will get lower discount.
Q3.Information needed if I want a quotation?
A Name, Standard, Material Grade(Chemical Composition), Size Quantity, Weight.
Q4. Can we visit your company/factory before place the order?
A. Yes. Welcome anytime
Q5: How does your factory do regarding quality control?
A. Quality is priority. We always attach great importance to quality controlling from beginning to end.
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Cuprothal 294 Copper And Nickel Alloy Nickel Based Alloys Stable Images
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