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MUKAU FASTENERS is a prominent manufacturer and supplier located in Kinshasa, Congo, specializing in top-notch Copper Nickel 90/10 Nuts that are crafted for outstanding performance in both marine and industrial settings. These nuts are celebrated for their remarkable corrosion resistance, durability, and mechanical strength, making them perfect for challenging environments like seawater and chemical exposure. MUKAU FASTENERS prides itself on precision manufacturing and rigorous quality control, ensuring they provide dependable fastening solutions across various sectors, including shipbuilding, desalination, and power generation. With their Copper Nickel 90/10 Nuts, you can count on long-lasting performance and resistance to biofouling, oxidation, and high pressure.
Copper Nickel 90/10 Nuts are made up of about 90% copper and 10% nickel, with small amounts of iron and manganese added to boost strength and corrosion resistance. They showcase impressive tensile strength, excellent ductility, and remarkable resistance to seawater and stress corrosion cracking. These nuts remain stable even under high temperatures and pressures, offering great thermal conductivity and mechanical reliability. Copper Nickel 90/10 Nuts are designed to excel in demanding marine and industrial applications.
| 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.
You’ll find Copper Nickel 90/10 Nuts widely used in marine, offshore, and desalination industries, thanks to their exceptional resistance to seawater corrosion and biofouling. They’re perfect for heat exchangers, condensers, cooling systems, and seawater piping. Additionally, these nuts are utilized in power plants, chemical processing equipment, and shipbuilding, where high mechanical strength and erosion resistance are crucial. Copper Nickel 90/10 Nuts provide secure fastening in environments that face saltwater, temperature changes, and corrosive fluids, ensuring long-lasting performance and reliability.
Our Copper Nickel 90/10 Nuts at Mukau 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.
Mukau Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kinshasa, Congo, with over 8 years of experience serving global industries.
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