Changzhou Victory Technology Co., Ltd
                                                                                                           
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CuNi44 Copper Nickel Resistance Wire 0.5 μΩ·m Resistivity 400°C Max Temperature for Circuit Breakers

Price Negotiable
Price: Negotiable
MOQ: 5
Delivery Time: 7-20 days
Brand: Victory
Product Description
CuNi Alloy Copper Nickel Resistance Wire Overview

CuNi resistance alloys are precision-engineered materials composed of copper and nickel, specifically designed for applications requiring stable electrical resistance across temperature variations. These alloys maintain consistent performance in demanding electrical environments.

Key Features and Applications
  • Low temperature coefficient of resistance for stable performance
  • Maximum operating temperature up to 400°C depending on alloy grade
  • Excellent electrical conductivity and corrosion resistance
  • Good resistance consistency and thermal stability
  • Wide range of available specifications and forms
Primary Applications
  • Low voltage circuit breakers and thermal overload relays
  • Electric blankets and heating cables
  • Thermal cutouts and precision electrical components
  • Industrial heating elements and temperature control systems
Technical Specifications
Material Properties
Material Grade Resistivity (200°C μΩ·m) Max Working Temperature (°C) Tensile Strength (MPa) Melting Point (°C) Density (g/cm³)
NC003 (CuNi1) 0.03 200 210 1085 8.9
NC005 (CuNi2) 0.05 200 220 1090 8.9
NC010 (CuNi6) 0.1 220 250 1095 8.9
NC012 (CuNi8) 0.12 250 270 1097 8.9
NC015 (CuNi10) 0.15 250 290 1100 8.9
NC020 (CuNi14) 0.2 300 310 1115 8.9
NC025 (CuNi19) 0.25 300 340 1135 8.9
NC030 (CuNi23) 0.3 300 350 1150 8.9
NC035 (CuNi30) 0.35 350 400 1170 8.9
NC040 (CuNi34) 0.4 350 400 1180 8.9
NC050 (CuNi44) 0.5 400 420 1200 8.9
Available Forms and Sizes
Shape Size Range (mm)
Wire 0.08-7.5
Bar 8.0-50
Ribbon (0.05-0.35)×(0.5-6.0)
Strip (0.5-2.5)×(5-180)
Product Images
CuNi44 Copper Nickel Resistance Wire spool and close-up view showing material texture
CuNi alloy wire manufacturing process and quality control inspection
Various specifications of CuNi resistance wire and ribbon samples displayed
Material Characteristics

CuNi alloys form continuous solid solutions with copper and nickel infinitely soluble in each other. The alloy composition affects both electrical properties and visual appearance, with higher nickel content producing a silver-white coloration. Our CuNi44 alloy offers optimal balance of electrical performance and thermal stability for demanding applications.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Changzhou Victory Technology Co., Ltd
Location NO.32 West Taihu Road, Xinbei District, Changzhou, Jiangsu
Contact Person Victory

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