Premium CuNi Busbar for Industrial and Marine Electrical Applications | CuNi90/10,CuNi70/30
Copper Nickel (CuNi) busbars are a high-performance solution for both industrial and marine electrical applications. With their exceptional combination of electrical conductivity, mechanical strength, and corrosion resistance, CuNi busbars have become the preferred material for demanding environments where reliability and long-term durability are essential. DLX’s CuNi busbars, offered in 90/10 and 70/30 alloy compositions, are engineered to meet these requirements while adhering to international standards, providing customers with a dependable solution for industrial and marine electrical systems.
The 90/10 CuNi busbar maintains a high copper content for efficient conductivity while offering significant corrosion resistance for moderate marine and industrial environments. This makes it ideal for switchboards, shipbuilding projects, and electrical distribution systems exposed to humidity, seawater spray, or mildly corrosive industrial atmospheres. The 70/30 CuNi variant, with higher nickel content, offers enhanced corrosion resistance, making it suitable for offshore platforms, desalination units, and other aggressive environments where chemical attack or extreme saline conditions are prevalent.
| Property / Alloy Grade | CuNi 90/10 | CuNi 70/30 | Pure Copper (Cu) |
|---|---|---|---|
| Copper Content (%) | 90 | 70 | 100 |
| Nickel Content (%) | 10 | 30 | 0 |
| Max Service Temperature (°C) | 200 | 200 | 150 |
| Corrosion Resistance | Excellent | Superior | Moderate |
| Electrical Conductivity (% IACS) | ~21 | ~12 | 100 |
| Typical Applications | Industrial switchboards, shipbuilding, marine electrical distribution | Offshore platforms, heat exchangers, industrial power systems | General electrical distribution |
| International Equivalents | ASTM B122, DIN 2.0872, UNS C70600 | ASTM B122, DIN 2.0880, UNS C71500 | ASTM B187 |
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CuNi busbars excel in maintaining mechanical and electrical stability under fluctuating currents and temperatures. Their dimensional stability during thermal cycling ensures consistent electrical performance and reduces the risk of fatigue or deformation over long operational periods. This mechanical reliability is critical in applications where equipment operates continuously, such as industrial plants, renewable energy facilities, and marine vessels.
Compared with traditional copper busbars, CuNi alloys provide superior corrosion resistance, extending the operational lifespan of electrical systems. Pure copper, while highly conductive, is prone to oxidation and degradation in saline or humid environments, leading to increased maintenance and replacement costs. Aluminum, another alternative, lacks sufficient mechanical strength and long-term durability in harsh conditions. CuNi busbars bridge these gaps, delivering a solution that combines electrical efficiency, corrosion resistance, and mechanical resilience.
Global demand for CuNi busbars is rising, driven by trends in renewable energy, marine engineering, and industrial automation. Offshore wind farms, solar power plants, and modern shipbuilding projects require materials that perform reliably in aggressive environments without frequent maintenance. CuNi busbars meet these demands, ensuring stable electrical performance while minimizing energy losses, maintenance, and downtime.
DLX distinguishes itself by producing CuNi busbars that meet stringent quality standards. Each busbar is manufactured to precise specifications, ensuring uniform alloy composition, accurate dimensions, and smooth surface finishes. Rigorous testing for conductivity, mechanical integrity, and corrosion resistance ensures that every product performs consistently in challenging industrial and marine environments.
Compliance with international standards is a key advantage of DLX CuNi busbars. For 90/10 CuNi, equivalents include ASTM B122, DIN 2.0872, and UNS C70600. For 70/30 CuNi, equivalents include ASTM B122, DIN 2.0880, and UNS C71500. This standardization guarantees seamless integration into global projects, allowing engineers and procurement teams to specify DLX products with confidence.
DLX also provides consultative support to clients, helping select the right alloy, size, and fabrication method based on project requirements. This tailored approach ensures optimal performance and reduces the risk of errors during installation. Combined with a robust global supply chain, DLX delivers CuNi busbars promptly, supporting projects across Europe, North America, Asia, and beyond.
CuNi busbars are particularly advantageous in marine applications. Shipboard electrical systems, switchboards, and grounding networks benefit from the alloy’s resistance to saltwater corrosion and biofouling. In industrial environments, CuNi busbars are used in power distribution systems, renewable energy equipment, and heat exchangers, where reliability and long-term performance are critical.
Market trends indicate a growing focus on materials that combine sustainability, efficiency, and long-term durability. CuNi busbars reduce maintenance frequency and replacement costs, contributing to operational efficiency and sustainability goals. As industries prioritize energy efficiency and reliable infrastructure, the demand for high-quality CuNi busbars continues to expand.
DLX continuously innovates in production techniques, including precision cutting, bending, surface finishing, and testing. Every busbar is manufactured to provide consistent performance in real-world conditions. This attention to detail ensures that clients receive products that deliver dependable electrical conductivity, corrosion resistance, and mechanical stability throughout their operational life.
In conclusion, CuNi 90/10 and 70/30 busbars represent an optimal solution for industrial and marine electrical applications. Combining high conductivity, corrosion resistance, and mechanical strength, these busbars provide long-term reliability and operational efficiency. DLX, through advanced production processes, international standard compliance, and consultative customer support, delivers premium CuNi busbars that meet the demands of modern electrical systems, offering both performance and peace of mind for industrial and marine clients worldwide.
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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