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Hamad Fasteners, a reputable manufacturer and supplier based in Riyadh, Saudi Arabia, is well-known for providing top-notch fastening solutions tailored for tough industrial and marine environments. One of their standout products, Copper Nickel 90/10 Nuts, is particularly prized for its remarkable resistance to seawater corrosion, biofouling, and cracking under stress. Crafted to meet international standards, these nuts ensure dependable performance, robust strength, and a long lifespan even in the harshest conditions. Hamad Fasteners proudly supports various industries, including shipbuilding, offshore oil and gas, desalination, and power generation, with their reliable fastening products.
These Copper Nickel 90/10 Nuts are made up of 90% copper and 10% nickel, with carefully controlled amounts of iron and manganese to boost their mechanical strength and corrosion resistance. This alloy is exceptional at resisting pitting, crevice corrosion, and stress corrosion cracking, especially in chloride-rich and marine settings. On the mechanical side, these nuts showcase impressive tensile and yield strength, toughness, and durability, making them ideal for critical fastening tasks in challenging environments.
| 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 these nuts commonly used in marine engineering, offshore platforms, desalination plants, heat exchangers, pumps, and seawater piping systems. They’re also utilized in chemical processing facilities and power plants where exposure to corrosive substances is a regular occurrence. With their unique blend of strength, corrosion resistance, and lasting performance, Copper Nickel 90/10 Nuts deliver secure and trustworthy fastening solutions for demanding industrial and marine applications.
Our Copper Nickel 90/10 Nuts at Hamad 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.
Hamad Fasteners is one of the Industrial suppliers and manufacturers of quality fasteners in Riyadh, Saudi Arabia, that has spent more than 12 years serving various industries.
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