High-Performance CuNi23 Copper Nickel Wire for Heating Cables

Our High-Performance CuNi23 Copper Nickel Wire is a top-notch material built for heating cables and other high-demand applications. With a nickel content of about 23%, this alloy strikes the perfect balance between electrical resistivity (0.30 μΩ·m at 20°C) and thermal stability, making it ideal for low-temperature heating systems, precision resistors, and electrical components. Whether you’re designing underfloor heating for homes, control systems for vehicles, or sensors for marine environments, our CuNi23 wire delivers reliable, consistent performance every time.

This wire is engineered for durability and versatility. Its corrosion resistance makes it a champ in tough conditions, while its high ductility and weldability mean it’s easy to shape into wires, ribbons, or strips. With a tensile strength of 350 MPa and a maximum operating temperature of 300°C, it’s tough enough to handle stress and heat without missing a beat. From energy-efficient heating solutions to rugged industrial systems, our CuNi23 wire is the go-to choice for manufacturers who need quality they can count on.

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What makes our CuNi23 wire stand out? It’s all about performance and reliability. Its low temperature coefficient of resistance (TCR) of less than 16 x10⁻⁶/°C ensures stable electrical properties, even when temperatures fluctuate. This is a game-changer for heating cables, where consistent heat output is critical for efficiency and safety. Plus, its corrosion resistance makes it perfect for harsh environments like marine or industrial settings, where moisture and chemicals can wreak havoc on lesser materials.

We offer this wire in a wide range of sizes—wires from 0.05mm to 8mm in diameter, ribbons as thin as 0.05mm, and strips up to 200mm wide—to suit any project. Our hydrogen annealing process gives it a smooth, bright surface and a soft annealed condition, making it a breeze to work with during fabrication. Whether you’re crafting intricate resistors or robust heating systems, our CuNi23 wire is designed to make your manufacturing process smoother and more efficient.

Parameter:

Properties Material	Resistivity 200c μΩ.m	Max working temperature (℃)	Tensile strength (Mpa)	Melting point (℃）	Density (g/cm3)	TCR *10-6/℃ (20-600℃）	EMF vs Cu (μV/℃） （0-100℃）
CuNi1	0.03	200	210	1085	8.9	＜100	-8
CuNi2	0.05	200	220	1090	8.9	＜120	-12
CuNi6	0.1	220	250	1095	8.9	＜60	-18
CuNi8	0.12	250	270	1097	8.9	＜57	-22
CuNi10	0.15	250	290	1100	8.9	＜50	-25
CuNi14	0.2	300	310	1115	8.9	＜30	-28
CuNi19	0.25	300	340	1135	8.9	＜25	-32
CuNi23	0.3	300	350	1150	8.9	＜16	-34
CuNi30	0.35	350	400	1170	8.9	＜10	-37
CuNi34	0.4	350	400	1180	8.9	0	-39
CuNi44	0.5	400	420	1200	8.9	＜-6	-43

Size Range
Wire	0.08-7.5mm
Ribbon	(0.05-0.35)*(0.5-6.0)mm
Strip	(0.50-2.5)*(5-180)mm
Rod	8-50mm

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The copper-nickel alloy market is on a hot streak, and it’s no surprise why. Industries like heating systems, electronics, automotive, marine, and aerospace are leaning heavily on high-performance materials to power their innovations. The global market for copper-nickel alloys is expected to keep growing over the next decade, fueled by trends like the rise of energy-efficient heating solutions, electric vehicles (EVs), and smart grid technologies. These sectors demand materials that deliver precision, durability, and efficiency—exactly what our CuNi23 wire brings to the table.

Energy efficiency is a major force shaping the market. As industries push for greener solutions, materials that minimize energy loss while maintaining performance are in high demand. Our CuNi23 wire’s balanced resistivity and thermal stability make it a perfect fit for applications like heating cables in eco-friendly buildings or resistors in EV systems. Another key trend is the growing need for corrosion-resistant materials in marine and industrial applications, where our wire’s ability to withstand tough conditions gives it a clear edge.

The rise of automation and IoT is also driving demand. Smart heating systems and control units require materials that deliver consistent performance, and our CuNi23 wire is built for just that. From underfloor heating to industrial controllers, this alloy supports the backbone of modern technology. As industries continue to innovate, the versatility and reliability of copper-nickel alloys like ours will keep them at the forefront of material choices.

Applications of CuNi23 Wire

Our High-Performance CuNi23 Copper Nickel Wire is a versatile material with a wide range of applications. Here’s where it really shines:

• Heating Cables: Its stable resistivity and thermal performance make it ideal for low-temperature heating applications like underfloor heating, electric blankets, and industrial heating systems.

• Precision Resistors: The wire’s low TCR ensures consistent current control, making it perfect for resistors in electronics, from consumer devices to industrial systems.

• Thermal Overload Relays: Its durability and heat tolerance make it a reliable choice for relays that protect electrical systems from overheating.

• Marine Applications: With excellent corrosion resistance, it’s perfect for electrical components in boats, offshore platforms, and other marine environments.

• Automotive Systems: From control units to sensors, CuNi23 wire supports reliable performance in vehicles, especially in EVs and hybrids.

• Aerospace Electronics: Its ability to handle temperature fluctuations and mechanical stress makes it suitable for high-reliability aerospace components.

Comparison Parameters Table

Alloy	Resistivity (μΩ·m, 20°C)	Max Working Temp (°C)	Tensile Strength (MPa)	Melting Point (°C)	Density (g/cm³)	TCR (x10⁻⁶/°C, 20-600°C)	EMF vs Cu (μV/°C, 0-100°C)
CuNi1	0.03	200	210	1085	8.9	<100	-8
CuNi6	0.10	220	250	1095	8.9	<60	-18
CuNi10	0.15	250	290	1100	8.9	<50	-25
CuNi14	0.20	300	310	1115	8.9	<30	-28
CuNi19	0.25	300	340	1135	8.9	<25	-32
CuNi23 (NC030)	0.30	300	350	1150	8.9	<16	-34
CuNi30	0.35	350	400	1170	8.9	<10	-37
CuNi44	0.50	400	420	1200	8.9	<-6	-43

When it comes to High-Performance CuNi23 Copper Nickel Wire, we’re not just another supplier—we’re the best in the business. With over 20 years of experience in alloy manufacturing, we’ve perfected the art of delivering products that meet the highest standards. Here’s why we’re the go-to choice:

• Top-Tier Quality Control: Every batch of our CuNi23 wire is rigorously tested for resistivity, tensile strength, and corrosion resistance. Our ISO 9001 certification ensures you’re getting a product you can trust.

• Custom Solutions: Need a specific wire size or form? We offer tailored options, from fine wires to wide strips, to match your exact needs, whether it’s for a prototype or large-scale production.

• Fast Delivery: With a production capacity of 200 tons per month and an efficient supply chain, we can deliver orders in as little as five days after payment.

• Innovative R&D: Our in-house research team stays ahead of industry trends, ensuring our CuNi23 wire meets the demands of tomorrow’s applications.

• Eco-Friendly Practices: We’re committed to sustainability, using energy-efficient production methods and recyclable packaging to help you meet your green goals.

• Global Reach, Local Service: We serve customers worldwide but provide personalized support to ensure you get exactly what you need, no matter where you are.

Compared to others in the market, our focus on precision, customization, and reliability sets us apart. Some suppliers skimp on quality or offer limited flexibility, but we go all-in to deliver a product that’s durable, easy to work with, and perfectly suited to your needs. Our advanced manufacturing techniques, like hydrogen annealing and precision cold drawing, ensure our CuNi23 wire performs flawlessly while saving you time and money during production.

For more details, pls directly contact us.

About Us:

Our 12,000㎡ factory is equipped with complete capabilities for research, production, testing, and packaging. We strictly adhere to ISO 9001 standards in our production processes, with an annual output of 1,200 tons. This ensures that we meet both quantity and quality demands. Furthermore, all products undergo rigorous simulated environment testing including high temperature, high pressure, and corrosion tests before being dispatched, ensuring they meet customer specifications. 

For all our clients, we offer timely and multilingual after-sales support and technical consulting, helping you resolve any issues swiftly and efficiently.

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FAQs：

1. What is High-Performance CuNi23 Copper Nickel Wire used for?
   It’s primarily used in heating cables, precision resistors, thermal overload relays, and electrical components for automotive and marine applications.

2. Why is CuNi23 wire ideal for heating cables?
   Its resistivity of 0.30 μΩ·m at 20°C and thermal stability ensure efficient and consistent heat output for low-temperature heating systems.

3. What are the key properties of CuNi23 wire?
   It offers a tensile strength of 350 MPa, corrosion resistance, a maximum working temperature of 300°C, and excellent weldability.

4. Can CuNi23 wire withstand harsh environments?
   Yes, its corrosion resistance makes it perfect for marine and industrial settings exposed to moisture or chemicals.

5. What sizes is CuNi23 wire available in?
   It’s available in wire diameters from 0.05mm to 8mm, ribbons from 0.050.2mm to 2.06.0mm, and strips from 0.055.0mm to 5.0200mm.

6. How does CuNi23 wire compare to other copper-nickel alloys?
   With 23% nickel, it provides higher resistivity than CuNi19 but lower than CuNi44, offering a great balance for heating and precision applications.

7. Is CuNi23 wire easy to manufacture with?
   Definitely, its ductility and weldability make it easy to process into various forms for manufacturing.

8. Which industries benefit from CuNi23 wire?
   It’s widely used in heating systems, electronics, automotive, marine, and aerospace industries for cables, resistors, and control systems.