Durable CuNi19 34 Alloy Strip for Electrical Controllers

Our Durable CuNi1 9 34 Alloy Strip is a game-changer for electrical controllers and precision electrical components. This copper-nickel alloy, with a nickel content ranging from 19-34%, is engineered for reliability, offering high resistivity, exceptional corrosion resistance, and thermal stability up to 500°C. It’s the perfect material for applications where precision and durability are critical, like automotive control systems, renewable energy controllers, and industrial automation equipment. Available in widths from 0.03mm to 150mm, our strip is designed to meet the toughest demands of modern industries.

We’ve crafted this alloy to deliver consistent performance in high-stress environments. Its high resistivity—ranging from 25 to 40 µΩ·cm at 20°C—makes it ideal for precision resistors and electrical controllers, while its robust corrosion resistance ensures it thrives in harsh conditions. Whether you’re building smart controllers for electric vehicles or designing resistors for telecommunications, our CuNi19 34 strip is built to last, offering unmatched reliability and efficiency.

For more details, pls directly contact us.

The CuNi19 34 Alloy Strip stands out because of its carefully balanced properties. The 19-34% nickel content gives it a higher resistivity than lower-nickel alloys like CuNi10, making it perfect for applications requiring precise electrical control. Compared to higher-nickel alloys like CuNi44 , it’s more cost-effective, offering similar performance at a lower price point. Its thermal conductivity (30-38 W/mK) ensures efficient heat dissipation, while its tensile strength (340-380 MPa) provides durability under mechanical stress.

This alloy’s low temperature coefficient of resistance (TCR) means it maintains stable electrical properties across a wide temperature range, from -100°C to 500°C. This makes it a top choice for electrical controllers that need to perform in extreme conditions, like those in automotive or renewable energy systems. Plus, its excellent corrosion resistance means it can handle exposure to moisture, chemicals, or high-humidity environments without degrading, ensuring long-term reliability.

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

For more details, pls directly contact us.

The copper-nickel alloy market is booming, driven by the growing demand for high-performance materials in electronics, automotive, and renewable energy sectors. Electrical controllers are at the heart of this growth, as industries increasingly rely on smart systems for automation, energy efficiency, and real-time monitoring. The global market for electrical control systems is expected to grow at a CAGR of around 6% through 2030, fueled by advancements in electric vehicles, smart grids, and IoT-enabled industrial equipment.

Copper-nickel alloys like CuNi19 34 are critical to this expansion. Their high resistivity and durability make them ideal for precision resistors, circuit controllers, and heating elements. The rise of electric vehicles (EVs) has been a major driver, with controllers requiring materials that can handle high temperatures and electrical loads while maintaining precision. Similarly, renewable energy systems, such as solar inverters and wind turbine controllers, demand alloys that can withstand outdoor conditions and deliver consistent performance.

Sustainability is a major trend shaping the industry. Companies are under pressure to adopt eco-friendly materials and processes, and our CuNi19 34 strip fits the bill. Produced with energy-efficient methods, it’s also fully recyclable, helping our customers meet environmental regulations without compromising on quality. The push for miniaturization in electronics is another key trend, driving demand for thinner, more precise alloy strips. Our ability to produce strips as thin as 0.03mm positions us to meet this growing need.

Emerging technologies, like 5G telecommunications and smart manufacturing, are also increasing the need for reliable alloys. Electrical controllers in these systems require materials with stable electrical properties and resistance to environmental stress—exactly what CuNi19 34 delivers. As industries continue to innovate, the demand for versatile, high-performance alloys will only grow.

Comparison Table: CuNi19 vs. CuNi34 vs. Other Copper-Nickel Alloys

Property	CuNi19	CuNi34	CuNi10	CuNi44 (Constantan)
Nickel Content (%)	19	34	10	44
Resistivity at 20°C (µΩ·cm)	25	40	15	49
Max Operating Temp (°C)	400	500	300	600
Thermal Conductivity (W/mK)	38	30	50	23
Tensile Strength (MPa)	340	380	250	420
Corrosion Resistance	Excellent	Excellent	Good	Excellent
Applications	Controllers, resistors	Controllers, resistors, heating	Low-temp heating	Precision resistors, thermocouples
Cost Efficiency	High	Moderate	Very High	Moderate

Our CuNi19 34 Alloy Strip is a versatile material with applications across multiple industries. Here’s where it makes a difference:

• Electrical Controllers: The strip’s high resistivity and thermal stability make it ideal for controllers in automotive systems, industrial automation, and renewable energy equipment, ensuring precise electrical performance.

• Precision Resistors: Its consistent electrical properties are perfect for resistors in telecommunications, medical devices, and consumer electronics, where accuracy is critical.

• Heating Elements: With a maximum operating temperature of 500°C, the strip is used in heating cables and elements for automotive, HVAC, and industrial applications.

• Renewable Energy Systems: In solar inverters and wind turbine controllers, CuNi19 34 ensures reliable performance in harsh outdoor environments.

• Automotive Applications: From EV battery management systems to engine control units, the strip provides durability and precision in high-stress conditions.

• Industrial Automation: It’s used in sensors and controllers for smart manufacturing, where corrosion resistance and thermal stability are essential.

The strip’s flexibility also makes it suitable for custom applications, like low-voltage circuit breakers, fuses, and shunt resistors, where its robust properties ensure long-term reliability.

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.

Client Visits

Building Stronger Partnerships

We support all kinds of testing:

FAQs:

1. What is the Durable CuNi19 34 Alloy Strip used for?
   It’s mainly used in electrical controllers, precision resistors, and low-voltage circuit components for industries like automotive, electronics, and industrial automation.

2. What makes CuNi19 34 suitable for electrical controllers?
   Its high resistivity, excellent corrosion resistance, and thermal stability up to 500°C ensure reliable performance in demanding control systems.

3. Which industries benefit from CuNi19 34 Alloy Strip?
   Automotive, renewable energy, telecommunications, and industrial automation rely on it for controllers, resistors, and heating elements.

4. How does CuNi19 34 compare to other copper-nickel alloys?
   With 19-34% nickel, it offers higher resistivity than CuNi10 and better cost-efficiency than CuNi44, balancing performance and affordability.

5. What are the temperature limits for CuNi19 34?
   It performs reliably from -100°C to 500°C, making it ideal for both high- and low-temperature applications.

6. Is CuNi19 34 resistant to corrosion?
   Yes, it excels in corrosive environments, including those with high humidity or chemical exposure, ensuring long-term durability.

7. Can CuNi19 34 be customized for specific needs?
   We offer customizable strip dimensions, from 0.03mm to 150mm in width, tailored to your project’s requirements.

8. What’s the lifespan of CuNi19 34 in electrical controllers?
   With proper use, it delivers consistent performance for years, even in high-stress electrical environments.