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Hakan Nickel Alloys, located in Istanbul, Turkey, is a reputable manufacturer and supplier of Copper Nickel Washers, crafted to deliver dependable sealing and fastening solutions even in the toughest conditions. Renowned for their impressive corrosion resistance and precise dimensions, these washers are produced to comply with international standards and meet customer needs. Hakan Nickel Alloys guarantees that each washer performs consistently in environments exposed to seawater, chemicals, and high humidity. With outstanding durability and wear resistance, Copper Nickel Washers are perfect for marine, offshore, and industrial piping and mechanical systems that require secure bolted connections.
These washers are primarily made from 90/10 or 70/30 copper-nickel alloys, which blend the ductility of copper with the corrosion resistance of nickel. This combination results in good tensile strength, typically between 300 to 500 MPa, along with excellent resistance to pitting, crevice corrosion, and biofouling in chloride-rich settings. The material is thermally stable, non-magnetic, and resistant to stress corrosion cracking. Copper Nickel Washers maintain their mechanical integrity and sealing effectiveness even under pressure and temperature changes, making them ideal for long-term use in aggressive fluid and marine environments.
| 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 Hakan Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Copper Nickel Washers in Istanbul, Turkey, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Turkey, 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 Washers find extensive use in marine engineering, particularly for sealing flanged connections in seawater piping, ballast systems, and cooling lines. They play a crucial role in offshore oil and gas platforms, desalination plants, and power stations, where corrosion resistance and secure fastening are vital. In industrial settings, they are essential in chemical processing plants and heat exchangers, where exposure to harsh chemicals necessitates reliable gasket materials.
