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Boikanyo Sheets and Plates, located in Cape Town, South Africa, stands out as a reliable manufacturer and supplier of top-notch non-ferrous metal products, including Copper Nickel 70/30 Coils. These coils are celebrated for their remarkable corrosion resistance, particularly in seawater and marine settings, making them ideal for tough industrial and offshore applications. With impressive strength, thermal stability, and resistance to biofouling, Boikanyo’s Copper Nickel 70/30 Coils are crafted to meet international quality standards. They come in various thicknesses and widths, ensuring long-lasting performance and durability in both structural and fluid handling systems.
The composition of Copper Nickel 70/30 Coils consists of about 70% copper and 30% nickel, along with trace amounts of iron and manganese to boost corrosion resistance and strength. This alloy boasts a tensile strength ranging from 340 to 500 MPa and exhibits good ductility, making it easy to form and weld. It also shows excellent resistance to stress corrosion cracking, erosion, and pitting in saltwater and harsh chemical environments. With its stability under high temperatures and pressure, it’s a dependable choice for marine and industrial systems that demand longevity and structural integrity.
| Specification | ASTM B122 / ASME SB122 |
|---|---|
| Thickness | Plate 0125″ to 5.00″ / Sheets 008″ to .0125″ |
| Sheet / Plates Width | 1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm |
| Sheet / Plates Length | 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc |
| Sheets Hardness | Half Hard, Quarter Hard, Soft, Hard, Spring Hard |
| Plate / Sheets Size | 15NB to 150NB In |
| Tempers | Annealed, 1/4, 1/2 Hard, 3/4 Hard, Full Hard |
| Coils Thickness | 0.3 mm to 120 mm |
| Coils Length | AS PER CUSTOMER’S REQUIREMENT |
| Form | Sheets, Plates, Coils, Strips, Circle, Ring, Disc, Foils |
| Value Added Service | Cladding, Heat Treatment, Annealed, Pickling, Rolling, Cutting, Bending, Forging, Minor Fabrication Etc. |
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Cu-Ni 70/30 | 65.0 min | 1 max | .05 max | 29-33 | 0.4-1.0 | 1 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Copper Nickel 70-30 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
| STANDARD | WERKSTOFF NR. | UNS |
| Copper 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.
| Steel Coil | Size (mm) | Weight per Coil (Kg) | Size(mm) | Weight per Coil (Kg) |
|---|---|---|---|---|
| Copper Nickel 70/30 Coil | 4000 x 2000 x 2.0 | 136.0 | 3000 x 1500 x 5.0 | 191.0 |
| Copper Nickel 70/30 Coil | 4000 x 2000 x 3.0 | 204.0 | 4000 x 2000 x 5.0 | 340.0 |
| Copper Nickel 70/30 Coil | 2500 x 1250 x 4.0 | 106.0 | 2500 x 1250 x 6.0 | 159.0 |
| Copper Nickel 70/30 Coil | 3000 x 1500 x 4.0 | 153.0 | 3000 x 1500 x 6.0 | 230.0 |
| Copper Nickel 70/30 Coil | 4000 x 2000 x 4.0 | 272.0 | 4000 x 2000 x 6.0 | 408.0 |
| Copper Nickel 70/30 Coil | 2500 x 1250 x 5.0 | 133.0 |
Copper nickel 70/30 coils and Slitting Coil offer many benefits including excellent resistance to seawater corrosion, making them ideal for marine applications. Their excellent resistance to biofouling, oxidation and stress corrosion cracking makes them durable in harsh environments. The alloy provides excellent thermal and electrical conductivity along with excellent formability and weldability. Copper nickel 70/30 coils are strong yet flexible, have high tensile and yield strengths, making them suitable for use in heat exchangers, desalination plants and chemical processes along with continuous operation at extreme temperatures and provides lower maintenance over time.
Copper Nickel 70/30 Coils find extensive use in marine engineering, particularly for seawater piping systems, heat exchangers, condensers, and components in shipbuilding, thanks to their outstanding resistance to saltwater corrosion and fouling. They are also utilized in offshore oil and gas platforms, desalination plants, and chemical processing facilities. Furthermore, these coils play a vital role in power generation systems and industrial cooling applications. Boikanyo’s Copper Nickel 70/30 Coils deliver a robust solution for various demanding environments.
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