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Fecral Flat Wire 2

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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 superior performance of CuNi44 Flat Wire (ASTM C71500/DIN CuNi44), a nickel-copper alloy designed for precision electrical components. With exceptional electrical resistance stability and mechanical workability, this flat wire is ideal for resistors, strain gauges, and more. Learn about its key attributes and applications in this video.
Related Product Features:
  • CuNi44 flat wire offers higher resistivity (49 μΩ*cm) and lower temperature coefficient of resistance (TCR) compared to similar alloys.
  • Available in thickness ranges from 0.05mm to 0.5mm and width ranges from 0.2mm to 10mm for versatile applications.
  • Features tensile strength of 450–550 MPa (annealed) and elongation ≥20% for durability and flexibility.
  • Bright annealed surface finish (Ra ≤0.2μm) ensures smooth and uniform contact in electrical components.
  • Superior resistance stability in temperature-fluctuating environments enhances performance reliability.
  • Complies with ASTM B122 and DIN 17664 standards, ensuring high-quality material for industrial use.
  • Ideal for precision wirewound resistors, strain gauge grids, and EMI shielding in high-frequency circuits.
  • Custom processing options include slitting, annealing, and insulation coating for tailored solutions.
Faqs:
  • What are the key advantages of CuNi44 flat wire over other copper-nickel alloys?
    CuNi44 flat wire offers higher resistivity (49 μΩ*cm), lower temperature coefficient of resistance (TCR), and superior resistance stability in temperature-fluctuating environments compared to alloys like CuNi10 and CuNi30.
  • What are the typical applications for CuNi44 flat wire?
    CuNi44 flat wire is commonly used in precision wirewound resistors, strain gauge grids, load cells, heating elements in medical devices, EMI shielding, and electrical contacts in automotive sensors.
  • What standards does CuNi44 flat wire comply with?
    CuNi44 flat wire complies with ASTM B122 and DIN 17664 standards, ensuring high-quality material for industrial applications. It also meets RoHS and REACH certifications.
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