wire constantan
Shape: wire, ribbon, strip
Stable resistance
Spool from flange to flange
Long life service
Stable resistance the best price copper resistance alloy wire constantan
Constantan
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.
resistance alloy constantan wire material: Constantan, CuNi1, CuNi2, CuNi6, CuNi8, CuNi10, CuNi14, CuNi19, CuNi23, CuNi30, CuNi34, CuNi40 (6J40), CuNi44.
Constantan alloy characteristic
Constantan has a number of special characteristics due to which it is known as the most versatile alloy that is available. Some of its important characteristics are:
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 composition and main properties of constantan
Name | Code | Main Composition (%) | Density (g/mm2) | |||
Cu | Mn | Ni | Cr | |||
Constantan | 6J40 | Bal. | 1-2 | 39-41 | - | 8.9 |
Type | (20º C ) Resistivity (μ Ω. M) | (20º C ) Temp. Coff. of Resistance (α×10-6/°C) | (0-100º C ) Thermal EMF vs. Copper (μV/º C )
| Max. Working Temp.(º C )
| Elongation (%) | Tensile Strength (Mpa) | |
Constantan | 6J40 | 0.48 ±0.03 | +40 | 45 | ≤500 | ≥15 | ≥390 |
CuNi40 constantan wire application
CuNi alloy wireis typically used in heating cables, fuses, resistors and various types of controllers, electric car controller, the instruments and meters, the integrated circuit, the sample electric current, the resistor. And low pressure resistance and so on.
As a big manufacturer and exporter in China on the line of electric resistance alloy, we can supply all kinds of electric resistancealloy wire and strips (resistance steel wire and strips weiding wire)
use of constantan
Constantan is used for the measurement of temperature. It is used for the formation of thermocouple, along with the wires of other metals such as copper, iron and chromel. It is especially used for resistance purpose since its resistance does not change much with the change in its temperature. It is used for DC current shunts. In the DC current shunts, the precision low value resistance wire is placed in series with the load in a direct current circuit, which is alreadycarrying a high current. It one measures the voltage drop; he can easily measure the current.
Why Us:
•Good quality control in production process, ISO9001:2008,SGS,BV approved.
• Excellent quality and Competitive price, OEM is available.
• Available in an extensive range of stock or custom size.
• The whole process from material to finished products can be traced.
Our Service:
• Your inquiry related to our product & price will be replied within 24hours.
• Well-trained & experienced staff are to answer all your inquiries professional in English of course.
• OEM is highly welcomed. We have strong R&D team here to help.
• Good after-sale service offered, please get back if you got question.
Q1.Do you attend exhibition every year?
A .Yes
Q2.Is there any discount of the nickel wire?
A. Yes. Bigger quantity will get a 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.
How to contact us?
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Whatsapp: +86 15027781894