High Strength CuNi 70/30 Plate C71500 Hot Rolled Copper Nickel Sheet Pressure Vessel
High Strength CuNi 70/30 Plate C71500 Hot Rolled Copper Nickel Sheet Pressure Vessel
1. Product Description
Copper Nickel Plate is a solid solution strengthened alloy plate composed primarily of copper and nickel, with controlled additions of iron and manganese. These plates are specifically formulated for superior performance in marine, brackish, and industrial cooling water environments. The most common alloys are UNS C70600 (90% Cu / 10% Ni) and UNS C71500 (70% Cu / 30% Ni), with Chinese equivalents BFe10-1-1 and BFe30-1-1. The material is supplied in both hot rolled (HR) and cold rolled (CR) conditions, with thicknesses ranging from 0.5 mm to 100 mm. Typical tempers include annealed (soft), quarter hard, half hard, and full hard. Surface treatments include as‑rolled, pickled, 2B bright cold rolled, polished, brushed, and chequered (diamond pattern). All plates conform to ASTM B171 / ASME SB171 or EN 1652 standards.
2. Product Applications
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Ballast water treatment (UV and electrochlorination): Reaction chamber linings, UV reactor tube sheets, electrode support plates.
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Offshore fish farms (aquaculture): Net pen connector plates, feed barge seawater cooling plates, oxygenation system diffuser plates.
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LNG carriers (seawater systems): Vaporizer seawater inlet plates, ballast pump housing covers.
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Coastal geothermal plants: Heat exchanger plates for brine/steam cycles, condenser plates.
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Shipboard desalination (reverse osmosis): Pressure vessel end plates, high‑pressure piping supports.
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Port and harbor infrastructure: Bumper plate facings for lock gates, tidal gate wear strips.
3.Product Advantages
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Exceptional resistance to bio‑fouling without coatings – Natural property reduces cleaning frequency and operational downtime.
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High resistance to pitting and crevice corrosion – Outperforms many stainless steels in stagnant or low‑flow seawater.
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Excellent thermal fatigue resistance – Suitable for cyclic thermal loads (e.g., heat exchanger start‑stop cycles).
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Low corrosion rate in sulphide‑polluted seawater – Maintains integrity even with intermittent H₂S exposure.
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Good weldability with standard GTAW and GMAW processes – No need for preheat or post‑weld heat treatment for sections < 25 mm.
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Recyclable and environmentally sound – 100% recyclable; no leaching of toxic elements under normal service.
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Certified for pressure equipment – PED 2014/68/EU compliant available (4.3 certification).
4. Key Product Parameters
| Parameter | Value / Range |
| Material Grades | UNS C70600 (CuNi90/10), UNS C71500 (CuNi70/30), BFe10-1-1, BFe30-1-1 |
| Thickness Range | 0.5 mm – 100 mm (0.5–4 mm CR; 4–100 mm HR) |
| Width Capacity | CR: max 1250 mm; HR: max 3200 mm |
| Length Capacity | CR: max 6000 mm; HR: max 12000 mm (longer on request) |
| Standard Tolerances (Thickness) | ASTM B171: ±7.5% for HR; EN 1652: ±0.03–0.10 mm for CR depending on thickness |
| Mechanical Condition Options | Annealed (O), 1/4 hard, 1/2 hard (H02), full hard (H04), stress relieved (SR) |
| Surface Finish Standard | HR pickled (ASTM #1), CR bright (ASTM #2B), polished (240/400/600 grit), chequered |
| Electrical Conductivity (20°C) | C70600: 5.8% IACS; C71500: 4.6% IACS |
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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