Cupro Nickel 90/10 is a popular alloy that is used extensively in the manufacturing of fasteners. It combines copper, nickel, and other elements like iron, manganese, and zinc. Cupro Nickel 90/10 Fasteners are widely used in the marine, oil and gas, and chemical industries because of their excellent corrosion-resistant properties and high strength.
Features of Cupro Nickel 90/10 Fasteners
Cupro Nickel 90/10 fasteners have excellent strength, flexibility, and toughness. They are highly resistant to stress corrosion cracking, erosion, and biofouling. These properties make them ideal for use in marine environments exposed to seawater and humid conditions. Cupro Nickel 90/10 fasteners have good resistance to cavitation and pitting, making them suitable for use in valves, pumps, and turbines.
Table Content
Corrosion Resistance of Cupro Nickel 90/10 Fasteners
Cupro Nickel 90/10 Fasteners have a high corrosion resistance due to the alloy's presence of nickel. Adding nickel to copper improves its resistance to acids and other corrosive agents. Cupro Nickel 90/10 fasteners can withstand the corrosive effects of seawater, brine, and salt spray. They also resist crevice corrosion in tight spaces where oxygen is depleted.
Chemical Composition of Cupro Nickel 90/10 Fasteners
Cupro Nickel 90/10 is an alloy of 90% copper and 10% nickel. It also contains small amounts of iron, manganese, and zinc. Adding nickel to copper improves the alloy's strength, flexibility, and corrosion resistance. The iron in the alloy improves its resistance to erosion, while the manganese improves its resistance to seawater corrosion.
Applications of Cupro Nickel 90/10 Fasteners
Cupro Nickel 90/10 fasteners are widely used in the marine, oil, gas, and chemical industries. They are used in seawater systems, desalination plants, heat exchangers, and oil rigs. Cupro Nickel 90/10 fasteners are also used in the construction of ships and submarines and in the manufacturing of valves, pumps, and turbines.
Heat Treatment of Cupro Nickel 90/10 Fasteners
Cupro Nickel 90/10 is a non-heat treatable alloy. The welding of Cupro Nickel 90/10 fasteners should be carried out at low-wattage settings to avoid cracking. The alloy can be cold-worked to improve its strength and flexibility. However, excessive cold working can lead to stress cracking in the material.
Forging or Forming & Machining
Hole Drilling & Surface Treatment
Quality Control & Marking, Identification
Final Inspection and Packaging
| 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. |
| 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. |
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Cupro Nickel 90 / 10 Bolts
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Cu Ni 90 / 10 Nuts
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Copper Nickel 90 / 10 Washers
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Cupro Nickel 90 / 10 Screw
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Cu-Ni 90 / 10 Stud Bolt
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CuNi 90 / 10 U Bolts
- Cupro Nickel 90 / 10 Fasteners
- CuNi 90 / 10 Nut Bolt
- 90 / 10 Cupro Nickel Dome Washer
- Copper Nickel 90 / 10 Fasteners
- Cu-Ni 90 / 10 Washers
- CuNi 90-10 Socket Set Screw
- Cu Ni 90 / 10 Fasteners
- CuNi 90 / 10 Square Nuts
- Copper Nickel 90 / 10 Fasteners Price List
- Cupro Nickel 90-10 Heavy Hex Bolts
- Cupro Nickel 90 / 10 U Bolts
- Cupro Nickel 90 / 10 Stud Bolts
- Cu Ni 90 / 10 Anchor Fasteners
- Copper Nickel 90 / 10 Carriage Bolts
- UNS C70600 Fasteners
- 90 / 10 Cupro Nickel Fastener
- Cupro Nickel 90 / 10 Hex Head Bolt
- 90 / 10 Cupro Nickel Washer
- Copper Nickel 90 / 10 Eye Bolts
- ASME SB151 Cupro Nickel 90 / 10 Fasteners
- Cupro Nickel 90 / 10 Industrial Fasteners
- UNS C70600 Fasteners
- Cupro Nickel 90-10 Ogee Washers
- Cupro Nickel 90 / 10 Threaded Rod
- Copper Nickel 90 / 10 Flat Washers
- CuNi 90 / 10 Plain Washer
- 90 / 10 Cupro Nickel Structural Bolts
- CuNi 90-10 Heavy Hex Nuts
- Cupro Nickel 90 / 10 Allen Cap Screw
- Thick Cupro Nickel 90 / 10 Washers
- Cupro Nickel 2.0872 Fasteners
- ASTM B151 Cupro Nickel 90 / 10 Spring Washer
- Cupro Nickel 90 / 10 Wing Nuts
- DSS C70600 Acorn Nuts
- Copper Nickel 90 / 10 Studs
- 90 / 10 Cupro Nickel Fasteners
- Cu-Ni 90 / 10 Self Locking Nuts
- Cupro Nickel 2.0872 Fastener
- Cupro Nickel 90-10 Fasteners
- CuNi 90-10 Coupling Nuts
- CuNi 90 / 10 Bolts and Nuts
- DSS C70600 Self Tapping Screw
| STANDARD | UNS | WERKSTOFF NR. |
| Cupro Nickel 90/10 | C70600 | 2.0872 |
| Cu-Ni 90/10 | Cu | Pb | Mn | Fe | Zn | Ni |
| 88.6 min | 0.05 max | 1.0 max | 1.8 max | 1 max | 9-11 max |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 8.1 g/cm3 | 1443 °C (2430 °F) | Psi – 35,000, MPa – 241 | Psi -80,000, MPa -551 | 30 % |
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