ASTM B171 C71500 Copper Nickel 70/30 Alloy Plate CuNi Sheet for Heat Exchanger
ASTM B171 C71500 Copper Nickel 70/30 Alloy Plate CuNi Sheet for Heat Exchanger
1. Product Description
Copper Nickel Plate (Cupronickel Plate) is a copper‑based alloy plate containing nickel (typically 10% or 30%), with additions of iron and manganese. The most common grades are 90/10 CuNi (C70600) and 70/30 CuNi (C71500). It offers outstanding resistance to seawater corrosion, natural biofouling protection, good thermal conductivity, and high mechanical strength. Available in hot‑rolled (HR) and cold‑rolled (CR) forms, with various tempers (annealed, half‑hard, full‑hard) and surface finishes (2B, polished, brushed, mirror, chequered).
2. Product Applications
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Marine & Offshore: Ship hulls, seawater piping, condensers, heat exchangers, desalination plants, offshore platforms, splash zone sheathing.
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Power Generation: Steam turbine condensers, nuclear and fossil fuel plant cooling systems, oil coolers.
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Chemical Industry: Pressure vessels, reactors, evaporators, corrosive fluid handling equipment.
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Other: Architectural facades, hydraulic systems, firefighting systems.
3.Product Advantages
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Excellent seawater corrosion resistance – Forms a self‑healing protective film, long service life.
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Superior biofouling resistance – Naturally prevents marine organism attachment, reduces maintenance.
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Good thermal conductivity – Ideal for heat exchangers and condensers (~40–50 W/m·K).
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High strength & good weldability – 70/30 grade tensile strength up to 480 MPa; easily welded by TIG/MIG.
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Low life‑cycle cost – Minimal maintenance, extended service intervals.
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Environmentally friendly – 100% recyclable, no toxic antifouling coatings needed.
4. Key Product Parameters
| Parameter | Value / Range |
| Material Grade | C70600 (90/10 CuNi), C71500 (70/30 CuNi), BFe10-1-1 (Chinese equivalent) |
| Thickness Range | 0.5 mm – 100 mm (customizable) |
| Width Range | 100 mm – 3,000 mm |
| Length Range | 500 mm – 6,000 mm (custom lengths available) |
| Temper / Condition | Annealed (soft), ¼ hard, ½ hard, full hard |
| Surface Finish | 2B (bright), polished, brushed, mirror, chequered (diamond) |
| Density | 8.9 g/cm³ (C70600) / 8.92 g/cm³ (C71500) |
| Tensile Strength (annealed) | 300 – 420 MPa (C70600) / 370 – 480 MPa (C71500) |
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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