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Tanvir Nickel Alloys, based in Cairo, Egypt, is a well-respected manufacturer and supplier of high-performance Copper Nickel Screws, specifically designed for use in challenging marine and corrosive environments. These screws are meticulously crafted from top-quality Cu-Ni alloys, which are renowned for their outstanding resistance to seawater, biofouling, and high humidity. At Tanvir Nickel Alloys, every product is made to meet international quality standards, thanks to their advanced manufacturing techniques and strict quality control measures. Their Copper Nickel Screws are perfect for securing components in shipbuilding, offshore structures, and various industrial systems, providing long-lasting performance and reliability in critical applications where corrosion resistance is a must.
Typically, Copper Nickel Screws are made from Cu-Ni 90/10 (C70600) or Cu-Ni 70/30 (C71500) alloys, which contain around 90% or 70% copper and 10% or 30% nickel, along with trace amounts of iron and manganese to boost strength and resistance. These screws boast a tensile strength ranging from 275 to 350 MPa and a yield strength of 105 to 150 MPa, along with excellent ductility and impact resistance. Their natural resistance to corrosion, stress cracking, and marine biofouling makes them ideal for long-term use in tough environments. Additionally, the thermal stability of copper nickel alloys ensures dependable performance even under varying temperatures and mechanical stresses.
| 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 | Ni | Pb | Cu | Fe | Mn | Zn |
| 9-11 max | 0.05 max | 88.6 min | 1.8 max | 1.0 max | 1 max |
| 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 |
At Tanvir Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Coper Nickel Screw in Cairo, Egypt, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Egypt, 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.
Copper Nickel Screws find extensive use in marine engineering, shipbuilding, and offshore oil and gas platforms, where corrosion from seawater and brine poses a significant challenge. They are particularly effective for securing panels, flanges, pipe supports, and machinery that are exposed to saline or wet conditions. In desalination plants and coastal infrastructure, these screws play a crucial role in maintaining structural integrity with minimal upkeep. Their resistance to biofouling and galvanic corrosion makes them especially valuable in underwater applications.
