CuNi 70/30 Copper Nickel Plate for Desalination Plant ASTM B171 C71500 Sheet
CuNi 70/30 Copper Nickel Plate for Desalination Plant ASTM B171 C71500 Sheet
1. Product Description
Copper Nickel Plate (Cupronickel Plate) is a high‑performance copper‑nickel alloy plate widely used in marine, chemical, and power generation industries. The alloy consists of copper with nickel (typically 10% or 30%) plus iron and manganese for improved strength and corrosion resistance. Common grades include UNS C70600 (90/10 CuNi), UNS C71500 (70/30 CuNi), and Chinese grade BFe10-1-1. These plates offer outstanding resistance to seawater corrosion, biofouling, and stress corrosion cracking. They are produced by hot rolling or cold rolling and are available in various thicknesses, widths, lengths, tempers (annealed, half‑hard, full‑hard), and surface finishes (2B, polished, brushed, mirror, chequered).
2. Product Applications
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Marine & Offshore: Ship hull sheathing, seawater cooling pipes, condensers, heat exchangers, desalination plants (MSF/MED), offshore platforms, splash zone protection, propeller shafts, pump bodies.
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Power Generation: Steam surface condensers, turbine oil coolers, auxiliary cooling systems in nuclear and thermal power plants.
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Chemical Processing: Pressure vessels, reactors, evaporators, piping for corrosive chemicals (dilute sulfuric acid, organic acids).
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Other: Architectural cladding, shipbuilding, hydraulic lines, firewater systems, heat exchanger plates in HVAC.
3.Product Advantages
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Outstanding resistance to seawater corrosion and erosion – Self‑renewing oxide film ensures decades of service in tidal and splash zones.
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Inherent biofouling resistance – Eliminates need for expensive and toxic anti‑fouling coatings.
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High thermal conductivity – Approximately 40–50 W/m·K, enabling compact heat exchanger designs.
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Excellent fabricability – Can be bent, rolled, welded (TIG/MIG), and machined using standard equipment.
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Good strength‑to‑weight ratio – Yield strength up to 250 MPa (C71500) while maintaining ductility (elongation >25%).
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Low life‑cycle cost – Reduced maintenance, inspection, and replacement frequency.
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Fully recyclable – Environmentally friendly material with no hazardous substances.
4. Key Product Parameters
| Parameter | Value / Range |
| Material Grade | C70600 (90/10 CuNi), C71500 (70/30 CuNi), BFe10-1-1 |
| Thickness Range | 0.5 mm – 100 mm (custom up to 150 mm) |
| Width Range | 100 mm – 3,200 mm |
| Length Range | 500 mm – 12,000 mm (or custom) |
| Temper / Condition | Annealed (O), 1/4 hard, 1/2 hard (1/2H), full hard (H) |
| Surface Finish | 2B (bright cold rolled), polished, brushed, mirror (#8), chequered (diamond pattern) |
| Density | 8.9 g/cm³ (C70600) / 8.92 g/cm³ (C71500) |
| Tensile Strength (annealed) | C70600: 300 – 420 MPa; C71500: 370 – 480 MPa |
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.
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