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Boikanyo Sheets and Plates, located in Cape Town, South Africa, is a trusted name in the manufacturing and supply of high-quality Copper Nickel products, including the renowned Copper Nickel 70/30 Foil. This foil is expertly crafted for applications that require outstanding corrosion resistance and durability in a thin, flexible metal format. Offered in a range of thicknesses and widths, Boikanyo’s Copper Nickel 70/30 Foil boasts impressive strength, flexibility, and resistance to seawater and harsh chemicals. Its exceptional performance in both marine and industrial environments makes it perfect for specialized uses where corrosion resistance and material versatility are crucial.
| Specifications | ASTM B122 |
| Dimensional specification | JIS, AISI, ASTM, GB, DIN, EN, etc |
| Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc |
| Thickness | 4mm-100mm |
| Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Surface Finish | 2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, chequered, embossed, hairline, sand blast, Brush, etching, Hot rolled plate (HR), Cold rolled sheet (CR), SATIN (Met with Plastic Coated) etc. |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Form | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc. |
| Surface Finish | No.1, No.4, No.8 Mirror Finish, 2B |
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Cu-Ni 70/30 | 65 min | 1.0 max | 0.05 max | 29-33 max | 0.4-1.0 max | 1 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
| STANDARD | WERKSTOFF NR. | UNS |
| Cupro Nickel 70/30 | 2.0882 | C71500 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Copper nickel 70/30 foil provides excellent corrosion resistance, especially in seawater and marine environments, making it ideal for shipbuilding, desalination and offshore applications Its high strength and delivery the durability ensures longevity even in harsh conditions. The excellent thermoelectric conductivity of the alloy makes it suitable for heat exchangers and electrical components. In addition, it resists biofouling, reduces maintenance costs, and improves productivity. The 70/30 configuration provides a balance of flexibility and rigidity, allowing for ease of manufacture while maintaining its design integrity in demanding applications.
Copper Nickel 70/30 Foil is extensively utilized in specialized marine applications, including flexible seals, gaskets, and corrosion-resistant linings. It’s also commonly found in electronics, electrical components, and heat exchangers where thin, durable, and corrosion-resistant metal sheets are essential. Furthermore, this foil is employed in chemical processing and desalination plants for protective layering, as well as in aerospace for lightweight, corrosion-resistant components. Boikanyo’s Copper Nickel 70/30 Foil ensures reliable performance across a variety of demanding applications.
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