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Okoye Nickel Alloys stands as a premier manufacturer and supplier in the heart of Kinshasa, drawing upon the rich natural resources of the Congo to produce exceptional copper-nickel sheets and plates. We are dedicated to more than just supply; we are your local partner in progress, committed to delivering materials that meet the most stringent international standards. Our focus is on providing robust, reliable solutions that form the backbone of critical industrial and marine projects, ensuring durability and performance where it matters most.
The inherent strength of our copper-nickel sheets and plates comes from their precise composition, typically a 90/10 or 70/30 blend of copper and nickel. This alloying creates a material with remarkable mechanical properties, including excellent tensile strength and outstanding ductility. More importantly, it offers superior resistance to corrosion, especially in aggressive marine environments, and provides high thermal conductivity. This unique combination makes it an incredibly tough yet workable material, capable of withstanding significant stress and harsh conditions over long periods.
| Specifications | ASTM B171, B122 / ASME SB171, SB122 |
| Standards | ASTM, ASME and API |
| Size | 1 mm to 100 mm |
| Finishing | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Form | Coils, Foils, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) & Angle, Channel, Tray, Roll Etc. |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Grade | UNS NO. C92200 & UNS NO. C83600, UNS NO. C70600 ( CU -NI- 90/10), C71500 ( CU -NI- 70/30), UNS NO C10100, C10200, C10300, C10800, C12000, C12200. |
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
|---|---|---|---|---|---|---|
| Cupro Nickel | 88.6 min | 1.0 max | 0.05 max | 9-11 max | 1.8 max | 1 max |
| Element | Copper Nickel 90/10 |
|---|---|
| Density | 8.1 g/cm3 |
| Melting Point | 1443 °C (2430 °F) |
| Tensile Strength | Psi -80,000, MPa -551 |
| Yield Strength (0.2%Offset) | Psi – 35,000, MPa – 241 |
| Elongation | 30 % |
At Okoye Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Copper Nickel Sheet and Plates in Kinshasa, Congo, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Congo, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Because of their unique characteristics, copper-nickel sheets and plates are indispensable in sectors where failure is not an option. They are the material of choice for shipbuilding, used in hulls and seawater piping systems to resist biofouling and saltwater corrosion. The power generation and desalination industries rely on them for heat exchangers and condensers. You’ll also find these alloys in critical chemical processing equipment and even in modern architectural cladding, proving their versatility from the depths of the ocean to the facades of city skylines.
