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Copper Nickel Pipes & Tubes

Premier Marine Grade Alloys � Renowned for exceptional resistance to sea-water corrosion, erosion, and bio-fouling.

Reliable Marine Piping Solutions

Steel Emporium is a leading stockist and manufacturer of high-quality Copper Nickel Pipes and Tubes (also known as Cupro Nickel). These alloys are specifically engineered for marine applications due to their inherent resistance to bio-fouling (marine growth) and excellent performance in seawater.

Our product range features the two most popular industrial grades: 90/10 Copper Nickel (C70600), the standard for seawater piping, and 70/30 Copper Nickel (C71500), which offers higher strength and better resistance to high-velocity water flow. These pipes are essential for shipbuilding, desalination plants, and offshore oil and gas production where reliable corrosion resistance is non-negotiable.

Copper Nickel Pipe Stock
Cu-Ni Condenser Tubes

Technical Advantages

Natural Bio-Fouling Resistance

The alloy surfaces are naturally antimicrobial, preventing the attachment of barnacles, algae, and other marine organisms without the need for toxic coatings.

Stress Corrosion Immunity

Copper-Nickel alloys are virtually immune to chloride-induced stress corrosion cracking, making them far safer than standard stainless steels in salt environments.

Thermal Conductivity

Offers excellent heat transfer properties, which is why it is the preferred material for marine heat exchangers and steam turbine condensers.

Excellent Ductility & Weldability

Easily fabricated, bent, and welded using standard techniques, allowing for rapid installation and complex piping layouts on naval vessels.

Copper Nickel Alloy Grades

Copper Nickel 90/10 (C70600)

The most cost-effective and common marine grade. Balanced with 10% Nickel and small amounts of Iron and Manganese for optimal sea-water durability.

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Copper Nickel 70/30 (C71500)

Higher 30% Nickel content provides superior strength and better resistance to erosion-corrosion at higher water velocities and pressures.

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Frequently Asked Questions

It is used because it forms a protective oxide film that resists corrosion in saltwater and its natural copper ions prevent bio-fouling (marine growth) from clogging the pipes.

90/10 is the standard grade for general seawater piping. 70/30 contains more nickel, providing higher strength and better resistance to cavitation and high-velocity water erosion.

No, Copper Nickel alloys are strictly non-magnetic, which makes them critical for naval applications like minesweepers where a low magnetic signature is required.

Yes, Copper Nickel is highly reliable for fresh water and desalination systems, providing clean water distribution without risk of toxic leaching.

The primary standards are ASTM B466 (Seamless Pipe), ASTM B467 (Welded Pipe), and ASTM B111 for heat exchanger tubes.

Ready to Order Premium Copper Nickel Pipes?

Contact us today for competitive pricing on 70/30 and 90/10 grades. We offer customized sizing, fast delivery, and full material certification.

Contact Us Call: 9820454631