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Lina Fasteners is your go-to manufacturer and supplier of top-notch Copper Nickel 90/10 Stud Bolts, proudly based in Tunis, Tunisia. With state-of-the-art manufacturing facilities and a commitment to quality assurance, we ensure that our stud bolts not only meet international standards but also perform reliably in tough environments. Our Copper Nickel 90/10 Stud Bolts are designed for exceptional corrosion resistance, precise dimensions, and a long lifespan. Catering to the marine, offshore, and industrial sectors, Lina Fasteners blends technical know-how, efficient logistics, and a customer-first approach to support projects around the globe.
Our Copper Nickel 90/10 Stud Bolts are crafted from an alloy that consists of about 90% copper and 10% nickel, with small amounts of iron and manganese added to boost mechanical strength and corrosion resistance. This unique composition gives them remarkable resistance to seawater, brackish water, and environments rich in chlorides. On the mechanical side, these stud bolts deliver solid tensile strength, impressive ductility, and high toughness. They stand up well against stress corrosion cracking, perform reliably through temperature changes, and have low magnetic permeability.
| 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 | 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 |
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.
Copper Nickel 90/10 Stud Bolts are a popular choice in marine and offshore settings where seawater corrosion resistance is crucial. Common applications include flanged joints in seawater piping systems, shipbuilding, offshore platforms, heat exchangers, condensers, and desalination plants. They also find their place in the oil and gas, power generation, and chemical processing industries, especially in saline or humid conditions. Thanks to their durability, resistance to biofouling, and compatibility with copper-nickel systems, these stud bolts are perfect for long-term use.
Our Stud Bolts Copper Nickel 90/10 at Lina Fasteners are packed in a way that retains their quality. Stud bolts are protected and packed individually in moisture proof containers to avoid any harm or contamination to the bolts. Proper labeling makes identification and handling to be easy since anyone can identify the product just by looking at the label. The packaging process ensures that the stud bolts are properly packed to ensure that they are not damaged during transport and are ready for use as soon as they get to the end user, thus our promise of quality product and excellent customer service.
Lina Fasteners is a leading manufacturer and supplier of high-quality fasteners in Tunis, Tunisia, with over 8 years of experience serving global industries.
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