Home > Copper Nickel Screws
Situated in the heart of Addis Ababa, Tariku Metals has established itself as a trusted local source for high-performance materials, directly supplying industry with essential components. We specialize in providing robust Hastelloy B2 forgings, a niche yet critical product for demanding industrial environments. Our focus is on delivering not just a product, but a reliable solution that supports the growth and integrity of local engineering projects, ensuring our clients have access to world-class materials backed by our dedicated service and deep understanding of the regional market’s unique needs.
Copper Nickel Screws are generally made up of copper combined with 10–30% nickel, along with trace amounts of iron, manganese, and other alloying elements. This blend provides excellent resistance to seawater corrosion, stress corrosion cracking, and biofouling. The copper-nickel alloys boast good tensile strength, ductility, and thermal stability, making them well-suited for tough marine and industrial environments. Their mechanical properties hold steady across a range of temperatures, and they effectively resist erosion from turbulent water flow. These traits make Copper Nickel Screws a top choice for applications where long-lasting corrosion resistance and reliable mechanical performance are a must.
| Density | Elongation | Yield Strength (0.2%Offset) | Melting Point | Tensile Strength |
| 8.1 g/cm3 | 30 % | Psi – 35,000, MPa – 241 | 1443 °C (2430 °F) | Psi -80,000, MPa -551 |
| Specifications | ASTM / ASME SB 61 / 62 / 151 / 152 |
| Dimensions | ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings |
| Size | 1/2” to 12″ |
| Standards | ASTM, ASME Washer, ANSI Washer, DIN Washer, EN Washer, BS Washer etc |
| Grade | Copper & Copper Nickel Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C71640 |
| Class | 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN |
Copper Nickel Screws are extensively utilized in industries that depend on materials resistant to seawater and corrosion. In marine engineering, they find their place in shipbuilding, seawater cooling systems, heat exchangers, condensers, and offshore structures. Desalination plants rely on them in high-salinity systems where corrosion protection is vital. Additionally, they are employed in power generation, chemical processing, and the oil & gas sectors for fastening needs, ensuring durability and reliability in challenging environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
