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Punit Fasteners is a top manufacturer and supplier of Copper Nickel 90/10 Fasteners located in Delhi, India. These fasteners are made from a corrosion-resistant alloy consisting of 90% copper and 10% nickel, recognized for their strong performance in marine and salt-rich environments. We provide a wide range of products including bolts, nuts, screws, washers, and threaded rods in both standard and custom sizes. Meeting ASTM B151 and B122 standards, our Copper Nickel 90/10 Fasteners work well in seawater piping systems, desalination units, and heat exchangers. Punit Fasteners guarantees high-quality, precisely made fasteners that are designed for lasting reliability in tough industrial conditions.
Copper Nickel 90/10 Fasteners are made of about 90% copper and 10% nickel, with slight additions of iron and manganese to improve strength and resistance to corrosion. These fasteners offer tensile strength between 275 and 370 MPa and yield strength around 105 MPa, along with excellent elongation and ductility. Brinell hardness typically falls between 60 and 80. They resist biofouling, seawater corrosion, and scaling, while remaining stable under changing temperatures. Their non-magnetic characteristics, along with good thermal and electrical conductivity, make them suitable for marine, hydraulic, and industrial uses that need strong and corrosion-resistant connections.
| 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.
Our Copper Nickel 90/10 fasteners at Punit 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.
Punit Fasteners is a leading manufacturer and supplier of high-quality fasteners in Delhi, India, with over 15 years of experience serving global industries.
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