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CuNi2 Copper Nickel Wire

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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 CuNi2 Alloy (NC005) / Cuprothal 05 Copper Nickel Alloy Resistance Wire, a high-performance material ideal for low-voltage electrical applications. With excellent resistance consistency and stability, this alloy is perfect for circuit breakers and thermal overload relays. Learn about its mechanical properties and wide range of applications in this video.
Related Product Features:
  • CuNi2 alloy features 2.0% nickel content with balanced copper for superior performance.
  • Max continuous service temperature of 200℃ ensures reliability in various applications.
  • Resistivity at 20℃ is 0.05±10%ohm mm2/m, providing consistent electrical performance.
  • Density of 8.9 g/cm3 makes it lightweight yet durable for industrial use.
  • Thermal conductivity of less than 120 ensures efficient heat management.
  • Melting point of 1090℃ guarantees stability under high-temperature conditions.
  • Tensile strength ranges from 140~310 Mpa (annealed) to 280~620 Mpa (cold rolled).
  • Non-magnetic and austenite structure makes it suitable for sensitive electrical applications.
Faqs:
  • What are the primary applications of CuNi2 Copper Nickel Wire?
    CuNi2 is widely used in low-voltage circuit breakers, thermal overload relays, and other low-voltage electrical products due to its excellent resistance consistency and stability.
  • What are the key mechanical properties of CuNi2 alloy?
    Key properties include a max continuous service temperature of 200℃, resistivity of 0.05±10%ohm mm2/m at 20℃, density of 8.9 g/cm3, and tensile strength ranging from 140~310 Mpa (annealed) to 280~620 Mpa (cold rolled).
  • Is CuNi2 alloy compliant with ROHS directives?
    Yes, CuNi2 alloy is compliant with ROHS directives, with no detectable levels of Cd, Pb, Hg, or Cr, making it environmentally friendly and safe for various applications.
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