Corrosion-Resistant CuNi19 Alloy Wire for Marine Sensors

Our Corrosion-Resistant CuNi19 Alloy Wire is a top-tier solution for marine sensors and other demanding applications. With a nickel content of about 19%, this alloy delivers a perfect mix of corrosion resistance and electrical stability, making it a go-to choice for environments where saltwater, humidity, and chemicals are part of the deal. Whether you’re building sensors for marine navigation systems, precision resistors for electronics, or heating cables for industrial setups, our CuNi19 wire is engineered to perform reliably every time.

This wire is built for toughness and versatility. Its resistivity of 0.25 μΩ·m at 20°C and maximum operating temperature of 300°C make it ideal for high-precision applications. Plus, its tensile strength of 340 MPa ensures it can handle mechanical stress without breaking a sweat. Easy to weld and highly ductile, it’s a manufacturer’s dream for shaping into wires, ribbons, or strips. From the rough seas to high-tech electronics, our CuNi19 alloy wire is ready to tackle the toughest challenges.

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Our CuNi19 alloy wire is designed to thrive where others falter. Its standout feature is its exceptional corrosion resistance, which makes it perfect for marine environments where saltwater and humidity can chew through lesser materials. The wire’s low temperature coefficient of resistance (TCR) of less than 25 x10⁻⁶/°C ensures its electrical properties stay consistent, even when conditions get extreme. This is critical for marine sensors, where precision is everything.

We produce this wire in a range of sizes—wires from 0.05mm to 8mm in diameter, ribbons as thin as 0.05mm, and strips up to 200mm wide—to fit any project. Our hydrogen annealing process gives it a smooth, bright surface and soft annealed condition, making it a breeze to work with during fabrication. Whether you’re crafting delicate sensor components or robust electrical systems, our CuNi19 wire delivers the reliability and ease you need to get the job done right.

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 booming, driven by growing demand in industries like marine, electronics, automotive, and aerospace. The global market for these alloys is projected to keep climbing over the next decade, thanks to trends like the expansion of offshore renewable energy, electric vehicles (EVs), and advanced marine technologies. Marine sensors, in particular, are seeing a surge in demand as the maritime industry invests in smarter navigation, environmental monitoring, and autonomous systems—all of which rely on materials like our CuNi19 alloy wire.

Sustainability is a major force shaping the market. As industries push for greener solutions, materials that offer energy efficiency and long-term durability are in high demand. Our CuNi19 wire’s low resistivity and corrosion resistance make it a perfect fit for energy-efficient applications, such as sensors in renewable energy systems or heating cables in eco-friendly setups. The marine sector, in particular, is leaning heavily on corrosion-resistant materials to ensure equipment longevity in harsh saltwater environments.

The rise of automation and IoT is another game-changer. Marine sensors and other smart systems require components that deliver pinpoint accuracy and reliability, and our CuNi19 wire is built for exactly that. From navigation systems to environmental monitoring tools, this alloy supports the backbone of modern marine technology. As industries continue to innovate, the demand for versatile, high-performance materials like ours will only grow.

Applications of CuNi19 Alloy Wire

Our Corrosion-Resistant CuNi19 Alloy Wire is a versatile material with a wide range of applications. Here’s where it really makes waves:

• Marine Sensors: Its corrosion resistance and stable resistivity make it ideal for sensors used in navigation, environmental monitoring, and offshore equipment, ensuring reliable performance in harsh marine conditions.

• Precision Resistors: The wire’s low TCR and consistent electrical properties are perfect for resistors in electronics, from consumer devices to industrial control systems.

• Heating Cables: Used in low-temperature heating applications like underfloor heating or marine heating systems, CuNi19 delivers efficient, reliable heat output.

• Automotive Systems: Its durability and corrosion resistance make it a great fit for sensors and control units in vehicles, especially in EVs and hybrids.

• Aerospace Components: The wire’s ability to handle temperature fluctuations and mechanical stress makes it suitable for aerospace electronics where reliability is critical.

• Industrial Applications: From circuit breakers to shunts, CuNi19 wire supports robust electrical systems in harsh industrial environments.

Our Company’s Advantage

When it comes to Corrosion-Resistant CuNi19 Alloy Wire, we’re not just another player in the market—we’re leading the pack. With over two decades of expertise in alloy manufacturing, we’ve fine-tuned our processes to deliver products that exceed expectations. Here’s why we’re the best choice:

• Top-Notch Quality Control: Every batch of our CuNi19 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 size or form? We offer tailored wire, ribbon, and strip options to match your exact specifications, whether it’s for a niche project or large-scale production.

• Speedy Delivery: With a production capacity of 180 tons per month and a streamlined supply chain, we can deliver your orders in as little as five days after payment.

• Cutting-Edge R&D: Our in-house research team stays ahead of industry trends, ensuring our CuNi19 wire meets the demands of tomorrow’s applications.

• Sustainable Practices: We’re committed to eco-friendly manufacturing, from energy-efficient processes to recyclable packaging, helping you meet your sustainability goals.

• Global Reach, Personal Service: We serve customers worldwide but provide dedicated support to ensure you get personalized solutions, no matter where you are.

Compared to others in the market, our focus on precision, customization, and reliability sets us apart. Some suppliers compromise on quality or flexibility, but we go all out 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 CuNi19 wire performs flawlessly while saving you time and costs during production.

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 (NC025)	0.25	300	340	1135	8.9	<25	-32
CuNi23	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

The future looks bright for Corrosion-Resistant CuNi19 Alloy Wire, and we’re excited to be at the forefront. As marine technologies, renewable energy, and smart systems continue to evolve, the need for high-performance, corrosion-resistant materials will keep growing. Our CuNi19 wire is perfectly positioned to meet these demands, offering the ideal combination of durability, precision, and versatility.

Whether you’re designing marine sensors for cutting-edge navigation systems or building resistors for next-gen electronics, our CuNi19 alloy wire is the material you can rely on. With our commitment to quality, innovation, and customer success, we’re here to help you bring your vision to life. Ready to dive in? Let’s create something amazing with our CuNi19 wire.

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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 Corrosion-Resistant CuNi19 Alloy Wire used for?
   It’s primarily used in marine sensors, precision resistors, heating cables, and electrical components for harsh environments like marine and industrial settings.

2. Why is CuNi19 alloy wire ideal for marine sensors?
   Its excellent corrosion resistance and stable resistivity of 0.25 μΩ·m at 20°C ensure reliable performance in salty, humid marine conditions.

3. What are the main properties of CuNi19 alloy wire?
   It offers a tensile strength of 340 MPa, a maximum working temperature of 300°C, high corrosion resistance, and excellent weldability.

4. Can CuNi19 alloy wire withstand harsh marine environments?
   Yes, its superior corrosion resistance makes it perfect for marine applications, resisting saltwater and chemical exposure.

5. What sizes is CuNi19 alloy 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 CuNi19 compare to other copper-nickel alloys?
   With 19% nickel, it provides higher resistivity than CuNi10 but lower than CuNi44, offering a great balance for marine and precision applications.

7. Is CuNi19 alloy wire easy to work with?
   Definitely, its ductility and weldability make it easy to process into various forms for manufacturing.

8. Which industries benefit from CuNi19 alloy wire?
   It’s widely used in marine, electronics, automotive, and aerospace industries for sensors, resistors, and heating elements.