Home > Copper Nickel > Copper Nickel 70/30 Nuts
Aisha Nickel Alloys, based in Muscat, Oman, is a trusted manufacturer and supplier of high-quality copper-nickel products, including fasteners, fittings, pipes, and welding consumables. Serving marine, offshore, desalination, chemical processing, and power generation industries, the company provides products that meet international standards and deliver reliable performance in harsh environments. Known for corrosion resistance, technical expertise, and consistent quality, Aisha Nickel Alloys offers Copper Nickel 70/30 Nuts as a specialized solution. These nuts are engineered for durability, high strength, and excellent resistance to seawater corrosion, making them ideal for critical bolted connections in marine and industrial applications.
Copper Nickel 70/30 Nuts are composed of approximately 70% copper and 30% nickel, with small amounts of iron and manganese to enhance strength and corrosion resistance. This alloy provides excellent tensile and yield strength, good ductility, and superior impact resistance. The nuts maintain dimensional accuracy and mechanical integrity even under high pressure, turbulent flow, and prolonged exposure to seawater and saline environments. Their corrosion resistance and mechanical stability make them suitable for aggressive marine and industrial conditions where reliable bolted connections are essential.
| Specifications | : | ASTM B 151 ASME SB 151 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to 70/30 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
| Cu-Ni 70/30 | Cu | Pb | Mn | Fe | Zn | Ni |
| 88.6 min | 0.05 max | 1.0 max | 1.8 max | 1 max | 9-11 max |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.1 g/cm3 | 1443 °C (2430 °F) | Psi – 35,000, MPa – 241 | Psi -80,000, MPa -551 | 30 % |
At Aisha Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Copper Nickel 70/30 Nuts in Muscat, OMAN, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the OMAN, 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 70/30 Nuts are widely used in marine and offshore applications, seawater piping systems, desalination plants, and chemical processing equipment. They are ideal for bolted connections in pumps, heat exchangers, condensers, valves, and piping networks exposed to saline or brackish water. These nuts are also commonly used in shipbuilding, offshore platforms, and power generation facilities to provide long-term, reliable performance. Their superior corrosion resistance, strength, and durability make them suitable for both new installations and maintenance or retrofit projects, ensuring secure, maintenance-free connections in demanding industrial and marine environments.
