CuNi44/NC050/2.0842/C72150 CuNi Alloy Wire The Resistant Choice For Power Generation Applications

CuNi44/NC050/2.0842/C72150 Wire is a high-resistance copper-nickel alloy composed of approximately 44% nickel and 56% copper. This alloy is primarily recognized for its high electrical resistivity, low temperature coefficient of resistance (TCR), and excellent corrosion resistance, making it ideal for electrical and thermal applications. CuNi44 is widely used in precision resistors, heating elements, and thermocouples due to its stable performance across a wide range of temperatures.

CuNi44/NC050/2.0842/C72150 Wire is a versatile copper-nickel alloy with high electrical resistivity, low TCR, and excellent corrosion resistance. These properties make it ideal for applications in precision resistors, heating elements, and thermocouples. Its non-magnetic nature and thermal stability further enhance its suitability for sensitive electronic and industrial environments. While its higher cost and lower conductivity compared to pure copper may limit its use in some applications, CuNi44's durability and reliability in demanding conditions make it a premium choice for critical applications in marine, chemical, and electrical industries.

Main physical properties:

Technical data table

• Tolerance of ohm/m: ±5%
• Round wire: range from 0.04mm (0.0016″) to 12mm (0.4724″)
• Ribbon: range from 0.05mm (0.002″) to 6mm (0.2362″), Max ratio width : thickness = 10:1

Key Features of CuNi44/NC050/2.0842/C72150 Wire:

• Composition:

Nickel (Ni): ~44%.

Copper (Cu): ~56%.

May contain trace elements for improved performance.

• High Electrical Resistivity:

Resistivity: Approximately 490 µΩ·cm at 20°C, making it suitable for high-resistance applications.

Stable resistance across a wide temperature range due to its low TCR.

• Corrosion Resistance:

Outstanding resistance to oxidation and corrosion in various environments, including humid and marine conditions.

Resistant to stress corrosion cracking and sulfide-induced corrosion, ensuring long-term reliability.

• Mechanical Properties:

Good Strength and Ductility: Provides reliable mechanical performance while allowing easy fabrication into wires, strips, or other forms.

Workability: Can be cold worked to enhance strength or achieve precise dimensions.

• Thermal Properties:

Stable Thermal Performance: Low thermal expansion and good heat resistance.

Performs efficiently in applications requiring sustained exposure to high temperatures, up to 400°C (752°F).

• Non-Magnetic:

Completely non-magnetic, making it suitable for sensitive electronic applications where magnetic interference must be avoided.

• Weldability and Fabrication:

Ease of Fabrication: Can be drawn into thin wires or formed into strips, making it versatile for manufacturing.

Weldability: Compatible with standard welding techniques without compromising its corrosion resistance or mechanical properties.

Applications:

• Electrical Resistance: Ideal for precision resistors, rheostats, and potentiometers where stable resistance is critical.
• Heating Elements: Commonly used in heating wires for appliances, industrial heaters, and resistive heating applications.
• Thermocouples: Frequently used in Type T thermocouples and other temperature-sensing devices.
• Instrumentation: Employed in high-precision measurement instruments, strain gauges, and other devices requiring accurate electrical properties.
• Marine and Chemical Environments: Used in environments exposed to seawater and corrosive chemicals due to its exceptional corrosion resistance.

Advantages of CuNi44/NC050/2.0842/C72150 Wire:

• High Electrical Resistivity: Provides consistent performance in high-resistance applications.
• Excellent Corrosion Resistance: Performs well in harsh environments, including marine and chemical industries.
• Thermal Stability: Maintains stable properties at elevated temperatures, making it suitable for heating and sensing applications.
• Non-Magnetic: Ideal for electronic applications requiring non-magnetic materials.
• Long Service Life: Resistant to oxidation and wear, ensuring reliability and durability.

Limitations of CuNi44/NC050/2.0842/C72150 Wire:

• Cost: The high nickel content makes it more expensive than some other copper-based alloys.
• Lower Conductivity: Its high resistivity limits its use in applications requiring high electrical conductivity.
• Limited Extreme Temperature Use: While stable up to 400°C, applications beyond this temperature may require specialized alloys.

Company Overview:

Jiangyin Chengxin Alloy Material Co., Ltd has more than 20 years of experience as the lead.ing alloy wire manufacturer in China. We offer a wide range of services from fine wire drawing toresistance wire manufacturing. Since the beginning, our specialty has been the quality and preci.sion of our products. We have the tightest tolerances and deliver within a few days to a fewweeks. As a result, we have become the leading alloy wire supplier in the industry.

Senphus Subsidiaries:

• Jiangyin Chengxin Alloy Material Co., Ltd.
• Jiangyin Senphus Electrical Materials Co., Ltd.
• Jiangsu Xiangcheng Supply Chain Management Co., Ltd.

Jiangyin Chengxin Alloy Material Co., Ltd.: With nearly 20 years of experience, Jiangyin Chengxin is a leading alloy wire manufacturer in China. We offer a wide range of services, from fine wire drawing to resistance wire manufacturing. Our specialty lies in the quality and precision of our products, achieving the tightest tolerances and delivering orders within days to weeks. As a result, we have established ourselves as the premier supplier of alloy wire in the industry.

Our product range includes:

• Copper-nickel alloys (CuNi1-CuNi44)
• Karma (Nikrothal L/Evanohm/Alloy 800)
• Manganin and Constantan
• Nickel-chromium alloys
• Thermocouple alloys (Type K, N, E, T, J)
• Thermocouple extension wire
• PTC thermistor resistance alloy
• Pure nickel wire and Monel alloy

These alloys are available in various forms, including wire, ribbon, stranded, and enamelled. Major applications include seat heating, underfloor heating, military projects, aerospace, household appliances, heating wire, mechanical and electrical plants, and temperature instruments. Our manufacturing processes are ISO 9001:2015 certified, and we specialize in fine and ultra-fine wire drawing, offering wire diameters from 0.025 mm (0.001") to 13 mm (0.51") in small batches, medium volumes, and mass production. We maintain a comprehensive quality inspection system, including in-house chemical analysis, chromatographic analysis, metallurgical analysis, pinhole tests, wire construction tests, and tension tests to ensure the highest quality standards.

Senphus Electrical Material Co., Ltd.: Founded in 2003, Senphus Electrical Material Co., Ltd. integrates research, manufacturing, and sales of electric heating alloys, heating cables, heating wires, and heating products. Leveraging over a decade of technical expertise in heating alloy wire, we have adopted advanced heating cable technology and machinery, successfully developing heating cables, temperature controllers, and temperature control systems suitable for building heating, pipe insulation, outdoor snow melting, wind power blade production, car seat heating, and healthcare applications.

The company is recognized as a high-tech enterprise in Jiangsu Province and a small giant enterprise in Jiangyin City, specializing in innovative technologies. We operate the "Wuxi Heating Cable Engineering Technology Research Center" and collaborate with experts from renowned domestic universities. Our portfolio includes 5 invention patents and over 30 utility model patents, showcasing our strong research and development capabilities.

With an annual output exceeding 1,000 tons of thermal alloy wire and an output value of approximately 105 million yuan, our products are well-received in markets such as the UK, Italy, Canada, Peru, and Spain. Our heating cables generate an annual output value of over 80 million yuan, with exports to Germany, Japan, the United States, Malaysia, Denmark, Brazil, and other countries.

The company has successfully passed multiple quality management system certifications, including IATF 16949, ISO 9001, ISO 14001 (Environmental Management System), and ISO 45001 (Occupational Health and Safety Management System). Our heating cables and related products have also obtained test reports from the Shanghai Cable Research Institute Test Center and received certifications such as UL (United States), VDE (Germany), CE (European Union), and RoHS.

Commitment to Quality: We adhere to the business commitment of "Reputation First, Quality First, Customer First" and uphold the quality policy of "Integrity-Based, Quality-Oriented, Excellent Service." We are dedicated to providing accurate products and professional services, and we look forward to collaborating sincerely with you to achieve mutual success.