Factory Direct CuNi 70/30 Copper Nickel Pipe, Sch40/Sch80 Seamless

Factory Direct CuNi 70/30 Copper Nickel Pipe, Sch40/Sch80 Seamless

1.Product Introduction 

Copper nickel pipe is a copper‑nickel alloy tubing produced in grades 90/10 (C70600) and 70/30 (C71500), with iron and manganese added to enhance strength and corrosion resistance. It is supplied as seamless or welded pipe, conforming to ASTM, ASME, EN and JIS standards. Known for its reliability in saline water environments, it is extensively specified for maritime and industrial fluid systems.

2.Product Advantages

• Resists corrosion in seawater, brackish water, and industrial brines over a wide temperature range.

• Biofouling resistance – surface copper ions naturally deter marine growth, reducing cleaning frequency.

• Withstands high‑velocity flow and particle‑laden fluids without rapid erosion.

• Can be readily welded, bent, and machined using standard techniques.

• Long history of trouble‑free operation, with many systems still in service after 50+ years.

• No susceptibility to chloride stress‑corrosion cracking, unlike many stainless steels.

• Lighter than carbon steel for same pressure rating, lowering support costs.

• Offers a cost‑effective alternative to titanium and nickel‑base superalloys.

3.Product Applications

• Shipboard systems – seawater cooling, fire mains, ballast, and bilge lines.

• Offshore platforms – deck piping, riser cladding, and subsea control lines.

• Desalination plants – evaporator bundles, brine heaters, and interconnecting pipework.

• Power stations – condenser tubing and auxiliary cooling water circuits.

• Chemical and petrochemical plants – heat exchanger tubing and process lines.

• Marine renewable energy – cooling loops for tidal and wave energy devices.

• Aquaculture – large‑diameter seawater supply pipes and cage frameworks.

• Transportation – hydraulic brake tubing in vehicles and aircraft ducting.

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4.Key Product Parameters

FAQ

1. Are you trading company or manufacturer ? We are manufacturer ,You can see the certification.

2. How long is your delivery time? Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity. 3. Do you provide samples ? is it free or extra ? Yes, we could offer the sample for free charge but need pay the cost of freight.

4. What is your terms of payment ? Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.