
Fasteners are small components that play a crucial role in the manufacturing industry. They hold together two or more materials, ensuring the final product is structurally sound. Manufacturers use various types of fasteners, depending on the application and the type of material used. Cu-Ni, or Copper-Nickel alloys, are known for their excellent corrosion resistance, electrical conductivity, and thermal conductivity. These properties make Cu-Ni alloy fasteners particularly useful in harsh environments, where other material fasteners would quickly erode.
Copper Nickel 70/30 Industrial Fasteners, Cupro Nickel 70/30 Fasteners, Cu-Ni 70/30 Fasteners, Cu Ni 70-30 Bolts, Copper Nickel 70/30 Nuts, Cupro Nickel 70/30 Screws, Copper Nickel 70/30 Fasteners Manufacturers in India.
Cu-Ni 70 Fasteners come in various shapes and sizes. Commonly used Cu-Ni 70 fasteners include nuts, bolts, screws, washers, and studs. These fasteners are made from a Cu-Ni alloy that contains 70 per cent copper and 30 per cent nickel. Cu-Ni 70 fasteners are uniquely suited for marine applications because they resist saltwater corrosion. They also have excellent resistance to biofouling, a buildup of marine life on surfaces submerged in seawater. Cu-Ni 70 fasteners are compatible with stainless steel but not aluminium or zinc.
Cupro Nickel 70/30 Bolts, 70/30 Copper Nickel Industrial Fasteners, CuNi 70/30 Custom Fastener, 70-30 Cu Ni Screw, Copper Nickel 70/30 Washers, Cupro Nickel UNS C71500 Fasteners, Cupro Nickel 70-30 Screws, Cupro Nickel 70/30 Fasteners Manufacturers In Mumbai.
Cu-Ni 30 fasteners are made from a Cu-Ni alloy that contains 30 per cent copper and 70 per cent nickel. These fasteners are known for their excellent resistance to temperatures and mechanical stress, making them well-suited for high-temperature applications. Cu-Ni 30 fasteners are commonly used in the aerospace industry, where they are used for cladding and equipment in supersonic aircraft. They are also used in electric power plants and nuclear reactors. Cu-Ni 30 fasteners are compatible with various materials, making them ideal for use in multiple industries.
The unique properties of Cu-Ni 70 and 30 fasteners come with many benefits. These fasteners have excellent corrosion resistance, even in harsh environments, which means they last longer than other fasteners. They are also highly durable, ideal for applications with paramount strength and stability.



Cu-Ni 70 and 30 fasteners are used in various industries, including the marine, aerospace, and power generation industries. They are ideal for shipbuilding because of their excellent resistance to saltwater corrosion and biofouling. In the aerospace industry, they are used for cladding and equipment in supersonic aircraft.
Cu-Ni 70 and 30 fasteners are excellent solutions for harsh environments, high-temperature applications, and applications where strength and stability are vital. Their excellent corrosion resistance, durability, and electrical and thermal conductivity make them suitable for various industries.
Cupro Nickel 70/30 Bolts and Nuts Specification
Standard | ASTM B151 / ASME SB151 |
Bolt / Screw Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
Nuts Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
Washers Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
Machine Screws Size | M1.6 – M12 |
Self Tapping Screw Size | No.2 – No. 14 |
Length | 3 mm to 200 mm |
Threads | UNF, BSW, BSF, METRIC, UNC, or as required |
Fasteners |
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Form | Hex, Threading, Square, Round as per Gauge Etc. |
Raw materials Source | JSPL, Mukund Steel, Tata Steel, Dhamm Steel, Usha Martin,etc. |
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 |
Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, B18.3 |
Threads | Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically |
Test Certificate | as per EN 10204 / 3.1 Manufacturer Test Certificate |
Additional Certifications | PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
Production Process | M24-M100: hot forging , M2-M24: Cold Froging, for custom-made connecting element machining and CNC |
Types | Bolts, Nuts, Stud Bolts, Washers, Threaded Rod, Anchor Fasteners, Eye Bolt, Stud, Cotter Pin, Socket Screw, Fine Fasteners & Spares, Foundation Fasteners, Hexagon Castle Nuts, Hexagon Domed Cap Bolts, Hexagon Thin Nuts etc. |
Cupro Nickel 70/30 Fasteners Price List
Price List of Cupro Nickel 70/30 Fasteners | Cu Ni 70-30 Fasteners Price in India (INR) | Copper Nickel 70/30 Fasteners Price in USD | Cupro Nickel 70/30 Fasteners Price in UAE (Dirham) |
---|---|---|---|
Cupro Nickel 70/30 Fasteners Price List | ₹ 3,536 | $ 48.33 USD | 166.17 AED |
Price of Cupro Nickel 70-30 Stud Bolt | ₹ 3,547 | $ 36.40 USD | 154.71 AED |
Cu Ni 70/30 Nut Bolt Price Per Kg | ₹ 1,377 | $ 15.00 USD | 66.10 AED |
70/30 Cu-Ni Nut Bolt Price List | ₹ 1,477 | $ 37.35 USD | 89.73 AED |
Copper Nickel 70/30 Bolts Price List | ₹ 1,829 | $ 39.45 USD | 57.27 AED |
CuNi 70/30 Screws Price | ₹ 2,335 | $ 27.72 USD | 96.45 AED |
Copper Nickel 70-30 Hex Bolt Price List | ₹ 6,547 | $ 197.32 USD | 476.50 AED |
M8 Cu Ni 70-30 Hex Flange Nut Price | ₹ 1,648 | $ 13.19 USD | 46.76 AED |
M16 5/8inch Copper Nickel 70/30 Hex Head Bolt Price List | ₹ 2,545 | $ 26.21 USD | 157.27 AED |
Copper Nickel 70-30 Fasteners Technical Data Sheet
Cupro Nickel 70/30 Fasteners Equivalent Grade
STANDARD | WERKSTOFF NR. | UNS |
Cu-Ni 70/30 | 2.0882 | C71500 |
70/30 Cupro Nickel Manufacturing Process




Common Types Of Cupro Nickel 70-30 Fasteners

Cupro Nickel 70/30 Bolts

70/30 Cupro Nickel Nuts

Cu Ni 70-30 Steel Screw

Copper Nickel 70/30 Washer

CuNi 70/30 Stud Bolts

Cupro Nickel 70-30 Anchor Bolts
Other Type 70-30 Cu-Ni Fasteners
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Cupro Nickel 70/30 Fasteners Chemical Composition
Grade | Cu | Mn | Pb | Fe | Zn | Ni |
Cupro Nickel 70/30 | 65.0 min | 1.0 max | .05 max | 0.4-1.0 | 1 max | 29 - 33 |
CuNi 70/30 Fasteners Mechanical Properties
Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
Cu-Ni 70/30 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |