Home > Copper Nickel> Copper Nickel 90/10 Stud Bolts
Fasteners manufactured by Majid Fasteners are also of industrial grade. Located in Dubai, UAE, Majid Fasteners has built an international reputation for manufacturing and marketing reliable and precision manufactured fasteners. Its specialty product line is Copper Nickel 90/10 stud bolts. The fasteners produced by Majid Fasteners offer exceptional corrosion resistance and the strength required for the harsh marine and offshore environments. An unwavering commitment to quality, on-time delivery, and total customer satisfaction has established Majid Fasteners as the supplier of choice for companies looking for long-lasting, high-performance fasteners that are capable of performing under the most demanding conditions not only in the UAE but throughout the world.
Stud bolts made of Copper Nickel 90/10 having 90% Copper and 10% Nickel with small amounts of Iron and Manganese added to improve strength and resistance to corrosion. Copper Nickel 90/10 has an excellent resistance to seawater, biofouling and chloride-induced corrosion making it ideal for use in marine environments and offshore drilling operations. Copper Nickel 90/10 stud bolts have moderate tensile strength approximately in the range of 310-450 MPa, with good ductility giving them the ability to withstand significant stresses and strains without breaking. The very good thermal conductivity and excellent resistance to erosion make Copper Nickel 90/10 an ideal material for piping, heat exchangers and many other applications.
| Specifications | ASTM B151 / ASME SB151 |
| Standard | DIN, ISO ,JIS ,GB, IS, BS, ASTM and all International Standards |
| Size | M3 – M100 | 3/6″ – 4″ | Custom Sizes |
| Length | 3 mm – 200 mm | Custom Sizes |
| 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 Treatment | Passivation /plain |
| Others Factor | OEM, ODM, ±0.03MM tolerance |
| Manufacturing Process | Wire Drawing, Cold Heading, Insert tapping, Heat Treatment, Surface Plating, Inspection, Packing. |
| Packing | IN BULK: carton, pallet, Small Boxes or customer request |
| Surface Coating | Black Oxide, Cadmium, Galvanized, Teflon, Xylan, Zinc, Others Upon Request |
| Test Certificate | As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merk blatt AD 2000 W2 Certified |
| Certification | Dual Certified As per ASTM & ASME Codes |
| 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 % |
In various sectors or industries that require high-performance assemblies subject to exposure to corrosive fluids, a Copper Nickel 90/10 stud bolt would be an ideal choice. These types of bolts are designed for marine and offshore applications and can withstand both chloride and biofouling corrosion. Within industrial applications, they are found in chemical processing equipment, condensers, and cooling waters. Copper Nickel 90/10 studs are highly versatile due to their strength, ductility, and thermal conductivity. As a result, they provide the user with the ability to create durable fastening solutions that provide maximum reliability. Furthermore, the fact that Copper Nickel 90/10 stud bolts are highly resistant to erosion makes them the most durable fastening option available to meet demanding conditions.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.