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Foil /Strip

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May 22, 2025
Category Connection: Copper Nickel Alloy
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Tags:
#copper nickel wire #constantan wire #copper nickel resistance wire
Brief: Discover the 0.02 X 200~250 mm Constantan CuNi44 Copper Nickel Resistance Foil/Strip, a high-performance resistance alloy with excellent resistivity and low temperature coefficient. Ideal for AC circuits and thermocouples, this foil offers superior corrosion resistance and mechanical strength.
Related Product Features:
  • Excellent anti-oxidation and mechanical strength at high temperatures.
  • High resistivity with a low temperature coefficient of resistance.
  • Superior reelability and forming performance for easy handling.
  • Excellent welding performance for seamless integration.
  • Moderate resistivity with a flat resistance/temperature curve.
  • Better corrosion resistance compared to manganins.
  • Used in AC circuits and as a thermocouple element.
  • Non-magnetic property with austenite micrographic structure.
Faqs:
  • What is the primary use of the Constantan CuNi44 Copper Nickel Resistance Foil/Strip?
    It is primarily used in AC circuits and as the negative element in type J and type T thermocouples, ideal for heat treating and cryogenic applications.
  • What are the key mechanical properties of the CuNi44 alloy?
    The CuNi44 alloy features a tensile strength of min 420 Mpa, elongation of min 25%, and a melting point of 1280ºC, with excellent anti-oxidation at high temperatures.
  • How does the Constantan foil perform in terms of resistivity and temperature coefficient?
    The foil offers high resistivity (0.49 ± 5% ohm*mm2/m) and a low temperature coefficient of resistance (< -6 ×10-6/ºC), ensuring stable performance over a wide temperature range.
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