CuNi10Fe1Mn, defined under DIN 17664, is a copper-nickel alloy containing approximately 90% copper, 10% nickel, 1% iron, and a trace amount of manganese. This alloy is specifically engineered to provide superior corrosion resistance, mechanical strength, and thermal stability, making it an ideal choice for marine, shipbuilding, and heat exchanger applications.

At DZX, our CuNi10Fe1Mn busbars are produced through advanced melting, extrusion, and finishing techniques. The addition of iron and manganese enhances resistance to erosion, stress cracking, and seawater corrosion, giving it a clear advantage over pure copper in harsh marine conditions. Every busbar meets or exceeds DIN 17664, ASTM B151, and EN 12163 standards, ensuring global compatibility and long service life.

CuNi10Fe1Mn busbars are widely used in:

• Shipbuilding: for grounding, switchboards, and electrical power distribution systems.

• Heat exchangers: due to its excellent resistance to high-temperature oxidation and seawater corrosion.

• Offshore platforms: in electrical panels and connecting systems exposed to marine environments.

• Desalination plants: for conductive components that resist biofouling and brine corrosion.

• Energy and HVAC industries: as a durable conductor in cooling and heat transfer systems.

The combination of copper’s electrical conductivity and nickel’s corrosion resistance makes CuNi10Fe1Mn a trusted material for long-term stability in harsh conditions.

As the marine, energy, and industrial engineering sectors push for longer-lasting, low-maintenance materials, the demand for CuNi alloys has surged. Modern ship designs and offshore platforms require conductive materials that withstand saltwater, high pressure, and temperature fluctuations.

CuNi10Fe1Mn has become the standard alloy for marine electrical systems and seawater-cooled equipment due to its ability to maintain mechanical strength and conductivity over decades of service. The growing adoption of renewable energy and offshore desalination further fuels the trend toward CuNi alloys with enhanced corrosion protection, where DZX has positioned itself as a key supplier.

In modern marine and offshore engineering, performance and reliability are everything. Systems that operate in saltwater or humid environments face constant corrosion, oxidation, and electrical stress. Ordinary copper or aluminum simply cannot withstand these conditions for long. That’s where DZX’s CuNi10Fe1Mn busbars make the difference.

Our busbars, produced in accordance with DIN 17664, combine strength, corrosion resistance, and conductivity in one balanced alloy. The iron and manganese in the CuNi10Fe1Mn formula act as reinforcement, improving resistance to erosion and prolonging service life in high-salinity environments. For shipbuilders, offshore engineers, and plant operators, that means fewer replacements, lower maintenance costs, and stable electrical performance year after year.

DZX’s CuNi10Fe1Mn busbars are widely applied in shipboard power networks, switchboards, and grounding systems. Their ability to resist both seawater and biofouling makes them a go-to choice for systems that require uninterrupted operation. In heat exchangers, this alloy delivers excellent thermal conductivity, allowing efficient heat transfer while preventing internal corrosion from salt or chemical exposure.

From an engineering standpoint, CuNi10Fe1Mn strikes the ideal balance between conductivity and mechanical integrity. While it doesn’t conduct as highly as pure copper, its stability under heat and stress gives it unmatched reliability in marine environments. It doesn’t pit, crack, or weaken—even after years of continuous exposure to seawater.

At DZX, we use advanced production technology to ensure every busbar meets strict dimensional tolerances and surface quality standards. Our precision extrusion process creates a fine-grain structure, which enhances conductivity and toughness. After extrusion, each bar undergoes annealing, straightening, and polishing to achieve consistent performance across all batches.

In addition to manufacturing excellence, DZX provides custom engineering support. We understand that shipbuilders and industrial clients often have unique installation needs—so we offer busbars in various sizes, thicknesses, and surface finishes. Whether the requirement is for compact grounding bars or heavy-duty distribution conductors, DZX can deliver with speed and precision.

The global trend toward sustainable marine design and energy efficiency is further driving the adoption of copper-nickel alloys. As offshore energy systems expand, materials like CuNi10Fe1Mn will play a crucial role in ensuring long-term reliability without excessive maintenance or replacements. DZX is already working with partners in the marine, energy, and HVAC sectors to supply environmentally compliant, recyclable alloys that support global sustainability goals.

What truly differentiates DZX is our commitment to reliability and customer collaboration. We not only supply materials but also work closely with clients to optimize alloy performance for specific operating environments. Every busbar undergoes corrosion, tensile, and conductivity testing before delivery, ensuring it meets real-world marine standards.

For shipyards, power plants, and industrial facilities looking for the perfect combination of corrosion resistance, electrical stability, and long-term strength, DZX’s CuNi10Fe1Mn busbars deliver dependable performance where it matters most.

Whether it’s used in ship grounding systems, heat exchangers, or desalination plants, our copper-nickel alloy provides unmatched durability and cost efficiency—backed by DZX’s expertise and commitment to quality.

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.

Building Stronger Partnerships

We support all kinds of testing:

1. What is CuNi10Fe1Mn made of? It’s a copper-nickel alloy with 90% copper, 10% nickel, and small amounts of iron and manganese for improved corrosion and strength properties.

2. Why is it ideal for shipbuilding and marine use? Because it resists seawater corrosion, biofouling, and stress cracking, ensuring long-lasting performance in marine environments.

3. Can it be used in heat exchangers? Yes, CuNi10Fe1Mn is a preferred material for seawater-cooled heat exchangers due to its thermal stability and corrosion resistance.

4. How does DZX manufacture CuNi10Fe1Mn busbars? DZX uses precision extrusion and annealing to achieve high dimensional accuracy, smooth surfaces, and consistent mechanical performance.

5. Does CuNi10Fe1Mn conduct electricity well? Yes, while its conductivity is lower than pure copper, it offers enough electrical performance for grounding and power systems.

6. How does it compare to aluminum or brass busbars? CuNi10Fe1Mn lasts much longer in corrosive environments and requires significantly less maintenance.

7. Is it easy to weld and machine? Yes, it can be easily welded and machined using standard industrial methods without cracking or distortion.

8. Does DZX offer custom sizing? Yes, DZX provides custom sizes, shapes, and finishes to meet specific shipbuilding and industrial