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Okoye Nickel Alloys, a leading manufacturer and supplier in Kinshasa, Congo, is renowned for its premium Copper-Nickel Fasteners. Our Copper-Nickel Fasteners, composed of 90% copper and 10% nickel, are engineered to excel in demanding environments. With outstanding corrosion resistance and durability, they are ideal for marine, chemical, and industrial applications. Trust Okoye Nickel Alloys for fasteners that offer superior performance and reliability, ensuring long-term value and resilience in challenging conditions.
Okoye Nickel Alloys, located in Kinshasa, Congo, has built a solid reputation as a reliable manufacturer and supplier of top-notch Copper Nickel Fasteners. These fasteners are celebrated for their impressive strength, durability, and outstanding resistance to corrosion, making them perfect for the toughest marine, industrial, and chemical environments. By employing cutting-edge manufacturing techniques and rigorous quality control measures, Okoye Nickel Alloys guarantees that every fastener meets exacting standards for mechanical performance, dimensional accuracy, and long-lasting reliability. With a strong track record among both local and international clients, their Copper Nickel Fasteners are the go-to choice for seawater systems, offshore platforms, heat exchangers, and other settings that face harsh conditions.
| Grade | Cupro Nickel |
| Specifications | ASTM / ASME SB 151, SB 152 |
| Standards | DIN, ASTM, BS and all International Standards |
| Length | UPTO 5 METERS |
| Size | M4 To M100 | Custom Sizes |
| Form | Nuts, Bolts, Washers, Screw |
| Types | Hex Bolts, Flange Bolts, Hex Head Bolts, Lag Bolts, Square Bolts, Eye Bolts, U Bolts, T Bolts, Counter sunk Bolts, Hex Head Nut, Eye Nut, Dome Nut, Coupling Nut, Square Nut, Acorn Nut, Hex Head Cap Screws, Socket Set Screws, Anchor Screws, Socket Head Screws, Concrete Screws, Shoulder Screws, Threaded Screws, Machine Screws, Machine Washers, Flat Washer, Star Washers, Sealing Washer, Lock Washer etc. |
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
|---|---|---|---|---|---|---|
| Copper Nickel | 65.0 min | 1 max | .05 max | 29-33 | 0.4-1.0 | 1 max |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength, ultimate | 372-517 MPa | 54000-75000 psi |
| Tensile strength, yield (depending on temper) | 88.0-483 MPa | 12800-70100 psi |
| Elongation at break (in 381 mm) | 45.0% | 45.0% |
| Charpy impact | 107 J | 78.9 ft-lb |
| Machinability (UNS C36000 (free-cutting brass) = 100%) | 20% | 20% |
| Shear modulus | 57.0 GPa | 8270 ksi |
| Poisson’s ratio | 0.34 | 0.34 |
| Elastic modulus | 150 GPa | 21800 ksi |
The Copper Nickel Fasteners from Okoye Nickel Alloys come in essential alloy grades like Cu-Ni 70/30 (about 70% copper and 30% nickel) and Cu-Ni 90/10 (around 90% copper and 10% nickel), with small amounts of iron and manganese added to boost mechanical strength and corrosion resistance. This specific composition offers remarkable protection against seawater corrosion, biofouling, and stress cracking. In terms of mechanics, these fasteners showcase high tensile strength, good ductility, and excellent impact toughness, all while maintaining dimensional stability across varying temperatures, ensuring secure and dependable fastening in critical applications.
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Okoye Nickel Alloys’ Copper Nickel Fasteners are extensively utilized in industries that demand durable, corrosion-resistant, and high-strength components. You’ll find them in shipbuilding, marine piping systems, offshore oil and gas platforms, desalination plants, cooling water systems, heat exchangers, condensers, and chemical processing equipment. These fasteners deliver long-lasting performance, secure connections, and exceptional resistance to tough environmental conditions, making them a top choice for engineers and industries working in challenging marine and industrial settings.
