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Cupro Nickel Fasteners
Cupro-Nickel Fasteners are hardware components made from copper-nickel alloys that offer a combination of copper and nickel in varying proportions. The most common grades used for Cupro-Nickel Fasteners are Copper-Nickel 70/30 (C71500) and Copper-Nickel 90/10 (C70600), containing 70% copper and 30% nickel, and 90% copper and 10% nickel, respectively. These alloys also include trace amounts of other elements like iron, manganese, and sometimes small additions of other elements to enhance specific properties.
One of the key features of Cupro-Nickel Fasteners is their exceptional resistance to seawater corrosion and biofouling. These alloys are widely used in marine environments due to their ability to withstand the harsh conditions encountered in seawater. They exhibit superior resistance to marine organisms, chloride-induced corrosion, and erosion, making them ideal for shipbuilding, offshore structures, and seawater-cooled systems.
Cupro Nickel Fasteners, Copper Nickel Alloy Fasteners, CuNi Fasteners, Cuppro Nickel Round Head Bolts, Copper Nickel Fasteners, Cupro Nickel Fasteners Manufacturers in India.
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Standard
B 18.2.4, B 28.2.4, B16.5
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ASTM / ASME
ASTM B151, ASME SB151
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Another significant feature of Cupro-Nickel Fasteners is their excellent mechanical properties. Depending on the specific grade, these alloys offer a good balance of strength and ductility, making them easy to fabricate, form, and weld. Their high strength allows Cupro-Nickel Fasteners to withstand mechanical stresses and loads encountered in various marine and industrial applications.
Corrosion resistance is a vital quality of Cupro-Nickel Fasteners. The formation of a protective oxide layer in seawater enhances their resistance to corrosion and minimizes the risk of galvanic corrosion when in contact with other metals. This makes them an excellent choice for fastening critical components in marine environments, including propellers, heat exchangers, condensers, and other equipment.
Copper Nickel Tab Washer, Cupro Nickel T Nuts, CuNi Carriage Bolts, ASME SB151 Cupro Nickel Hex Nuts, CuNi Plain Washer, Cupro Nickel Rivet Nuts, Cupro Nickel Fasteners Manufacturers in India.
Cupro Nickel
Bolts and Nuts Specification
| Specifications | ASTM B151, ASME SB151 |
| Standard | DIN, ASTM, BS and all International Standards |
| Size | M3 to M90 |
| Length | 10mm to 1000mm |
| 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 Coating | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
| Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing. |
Cupro-Nickel Fasteners find extensive applications in marine and offshore industries, where their corrosion resistance and mechanical properties are essential for reliable performance. They are used in shipbuilding, desalination plants, offshore oil and gas platforms, and seawater-cooled power generation facilities. Additionally, these fasteners are employed in chemical processing plants, where their resistance to corrosive chemicals and high-temperature performance are valued. Their versatility, durability, and resistance to seawater corrosion make them suitable for various industrial and marine applications, where reliable fastening solutions are necessary to ensure long-lasting performance in challenging environments.
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Types of Cupro Nickel Fasteners
Cupro Nickel Nuts
CuNi 70-30 Bolt
Cupro Nickel Washer
70-30 Cu-Ni Stud Bolts
Cupro Nickel Alloy Hex Bolt
Cupro Nickel Threaded Rod
Copper Nickel Anchor Bolt
Cupro Nickel Spring Washer
Fasteners Manufacturers In India
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Nut proof load testing to ISO 898-2
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Suitability for preloading to EN 14399-2
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Calibrated gauges and tools
Other Types Of Cupro Nickel Fastener
| Copper Nickel Bolts | Cupro Nickel Hex Bolt |
| Copper Nickel Hex Bolt | Copper Nickel Alloy Fasteners |
| Copper Nickel Stud Bolts | Cupro Nickel Copper Nickel Threaded Rod |
| Copper Nickel Spring Washer | Cu Ni Fasteners |
| Copper Nickel Fasteners | Cupro Nickel (Cu-Ni) Fasteners |
| Cu-Ni Spring Washers | ASTM B151 Cupro Nickel Hex Bolt |
Cupro Nickel Fastener Application Industries
