Marine Grade CuNi 70/30 Copper Nickel Plate ASTM B171 C71500 Anti-Corrosion Sheet

Marine Grade CuNi 70/30 Copper Nickel Plate ASTM B171 C71500 Anti-Corrosion Sheet

1. Product Description

Copper Nickel Plate (Cupronickel Plate) is a high‑performance copper‑nickel alloy plate primarily used in marine, chemical, and power generation industries. The alloy combines copper with nickel (typically 10% or 30%) plus iron and manganese to enhance strength and corrosion resistance. Standard grades include UNS C70600 (90/10 CuNi), UNS C71500 (70/30 CuNi), and Chinese grade BFe10-1-1. These plates exhibit excellent resistance to seawater corrosion, biofouling, and stress corrosion cracking. They are manufactured by hot rolling or cold rolling and can be supplied in various thicknesses, widths, lengths, tempers (annealed, half‑hard, full‑hard), and surface finishes (2B, polished, brushed, mirror, chequered).

2. Product Applications

• Marine & Offshore: Ship hull sheathing, seawater cooling pipes, condensers, heat exchangers, desalination plants (MSF/MED), offshore platforms, splash zone protection, propeller shafts, pump bodies.

• Power Generation: Steam surface condensers, turbine oil coolers, auxiliary cooling systems in nuclear and thermal power plants.

• Chemical Processing: Pressure vessels, reactors, evaporators, piping for corrosive chemicals (dilute sulfuric acid, organic acids).

• Other: touch surfaces (hospital equipment), architectural cladding, shipbuilding, hydraulic lines, firewater systems.

3.Product Advantages

• Outstanding resistance to seawater corrosion and erosion – Self‑renewing oxide film ensures decades of service in tidal and splash zones.

• Inherent biofouling resistance – Eliminates need for expensive and toxic anti‑fouling coatings.

• High thermal conductivity – Approximately 40–50 W/m·K, enabling compact heat exchanger designs.

• Excellent fabricability – Can be bent, rolled, welded (TIG/MIG), and machined using standard equipment.

• Good strength‑to‑weight ratio – Yield strength up to 250 MPa (C71500) while maintaining ductility (elongation >25%).

• Low life‑cycle cost – Reduced maintenance, inspection, and replacement frequency.

• Fully recyclable – Environmentally friendly material with no hazardous substances.

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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.