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Lina Fasteners is a reputable manufacturer and supplier of top-notch Copper Nickel 90/10 Nuts, proudly based in Tunis, Tunisia. With state-of-the-art production facilities and rigorous quality control measures, Lina Fasteners provides fastening solutions that not only meet international standards but also satisfy the demanding needs of various industries. Our Copper Nickel 90/10 Nuts are designed for exceptional corrosion resistance, precise threading, and long-lasting reliability. Catering to marine, offshore, and industrial sectors, Lina Fasteners blends technical know-how, efficient logistics, and a customer-centric approach to support projects in markets around the world.
Copper Nickel 90/10 Nuts are made up of roughly 90% copper and 10% nickel, with minor additions of iron and manganese to boost mechanical strength and corrosion resistance. This alloy is known for its remarkable resistance to seawater, brackish water, and environments rich in chlorides. In terms of mechanical properties, Copper Nickel 90/10 Nuts provide good tensile strength, excellent ductility, and impressive toughness. They are resistant to stress corrosion cracking, can handle thermal expansion, and have low magnetic permeability, ensuring stable performance over the long haul.
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Cupro Nickel 90/10 | 88.6 min | 1.0 max | 0.05 max | 9-11 max | 1.8 max | 1 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Cupro Nickel 90/10 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
| Specifications | ASTM B151 / ASME SB151 |
| Standard | DIN, ISO ,JIS ,GB, IS, BS, ASTM and all International Standards |
| Size | M3 – M100 | 3/6″ – 4″ | Custom Sizes |
| Length | 3 mm – 200 mm | Custom Sizes |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Threads available | UNF, BSW, BSF, METRIC, UNC, or as required |
| Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| Form | Hex, Threading, Square, Round as per Gauge Etc. |
| Head | Hex, Square, Round, Hex flange, Flat, T-head & Triangular etc. |
| Neck type | Hex, Square, Triangular, Oval & Knurled etc. |
| Surface Treatment | Passivation /plain |
| Others Factor | OEM, ODM, ±0.03MM tolerance |
| Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing. |
| Packing | IN BULK: carton, pallet, Small Boxes or customer request |
| Surface Coating | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
| Test Certificate | As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merk blatt AD 2000 W2 Certified |
| Certification | Dual Certified As per ASTM & ASME Codes |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Copper Nickel 90/10 Nuts find extensive use in marine and offshore applications where top-tier corrosion resistance is crucial. Common applications include shipbuilding, seawater piping systems, heat exchangers, condensers, and desalination plants. They are also utilized in the oil and gas, power generation, and chemical processing industries that operate in saline or humid conditions. Thanks to their resistance to biofouling, galvanic corrosion, and erosion, Copper Nickel 90/10 Nuts are perfect for enduring service in tough operating environments.
Our Copper Nickel 90/10 Nuts at Lina Fasteners are properly packed so that they do not reach the client in a damaged state. Every nut is covered and packed separately in strong and moisture-proof packets to avoid the spoilage and deterioration. Proper labeling helps in quick identification and management of the items. Our packing process ensures that the nuts do not lose their quality and are ready for use, which is a clear depiction of our quality products and excellent customer relations.
Lina Fasteners is a leading manufacturer and supplier of high-quality fasteners in Tunis, Tunisia, with over 8 years of experience serving global industries.
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