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Rinku Fasteners, a top-notch manufacturer and supplier based in Kolkata, India, specializes in high-quality Copper Nickel 90/10 Fasteners. These fasteners are crafted for strength, corrosion resistance, and reliability, making them perfect for tough industrial and marine settings. Each piece is precision-engineered to guarantee secure fastening, outstanding mechanical performance, and long-lasting durability, even in the harshest conditions. Built to meet international quality standards, Copper Nickel 90/10 Fasteners excel in environments where they face seawater, corrosive chemicals, and temperature fluctuations. They’re a go-to choice in shipbuilding, offshore platforms, chemical processing, and desalination industries, providing reliable fastening solutions for critical, high-performance needs.
Copper Nickel 90/10 Fasteners are made up of 90% copper and 10% nickel, with small amounts of iron and manganese added to boost strength and corrosion resistance. This unique blend gives them remarkable resistance to seawater corrosion, biofouling, and chemical damage. On the mechanical side, these fasteners showcase impressive tensile strength, toughness, and durability, keeping their shape even under high stress and extreme conditions. Their blend of corrosion resistance and mechanical prowess makes Copper Nickel 90/10 Fasteners perfect for demanding marine, chemical, and industrial applications where long-lasting reliability and secure fastening are a must.
| 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 | DIN, ISO ,JIS ,GB, IS, BS, ASTM |
| Standard | ASTM / ASME SB 160 / 164 / 425 / 166 / 446 / 574 / 472 |
| Size | M0.2 to M33 | 3/6″ to 2″ | Custom Sizes |
| Length | 3 mm to 200 mm | Custom Sizes |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
| Form | Hex, Threading, Square, Round as per Gauge Etc. |
| Threads | Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically |
| 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 |
| Certification | Dual Certified As per ASTM & ASME Codes |
| Test Certificate | As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
| Raw materials Source | JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin,etc. |
| Packing | IN BULK: canton, pallet, Small Boxs / carton / pallet, or customer request |
| Surface Coating | Cadmium Coating Hot Dipped Galvanizing Coating Ptfe Coated Phosphate Coating Teflon Coating Xylon Coating Zinc Coating |
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 Fasteners are a popular choice in marine and offshore industries, thanks to their exceptional resistance to seawater corrosion and biofouling. They’re frequently used in shipbuilding, desalination plants, and offshore platforms to secure structural components, pipelines, valves, and machinery that face tough environments. These fasteners are designed to withstand the rigors of their applications, ensuring that everything stays securely in place, even in the most challenging conditions.
Our Copper Nickel 90/10 fasteners at Rinku Fasteners are packed to ensure that they do not lose their quality. Every fastener is covered and packed in a strong and moisture proof packet to ensure that they are not damaged or contaminated. Proper labeling helps in identification and sorting since it enables one to know what is where and how to manage it. Our packaging method is very keen in a way that the fasteners are delivered in perfect condition and are usable immediately to show our quality products and excellent customer relations.
Rinku Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kolkata, India, with over 8 years of experience serving global industries.
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