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MUKAU FASTENERS, a reputable manufacturer and supplier located in Kinshasa, Congo, specializes in crafting top-notch Copper Nickel 90/10 Stud Bolts that adhere to international quality standards. Renowned for their exceptional resistance to corrosion, particularly in marine and offshore settings, these stud bolts are designed to deliver reliable performance even in the toughest conditions. MUKAU FASTENERS is committed to precision engineering and quality assurance, providing dependable fastening solutions for shipbuilding, desalination plants, power generation, and the chemical industry. Their Copper Nickel 90/10 Stud Bolts are perfect for applications that demand durability, strength, and remarkable resistance to seawater and biofouling.
Copper Nickel 90/10 Stud Bolts are made up of 90% copper and 10% nickel, with minor additions of iron and manganese to enhance strength and corrosion resistance. They boast excellent tensile strength, high ductility, and solid thermal stability. These stud bolts are particularly resistant to seawater corrosion, stress cracking, and erosion. They maintain their mechanical integrity even under high temperatures and pressure, ensuring reliable performance in both marine and industrial systems.
| 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 extensively utilized in marine engineering, offshore oil rigs, shipbuilding, and desalination systems due to their outstanding resistance to seawater corrosion. They are ideal for applications in heat exchangers, condensers, seawater piping, and cooling systems. Additionally, these stud bolts are used in chemical processing plants, power generation facilities, and hydraulic systems where high strength and corrosion resistance are crucial. Copper Nickel 90/10 Stud Bolts provide secure, long-lasting joints in environments that experience high salinity and fluctuating temperatures.
Our Stud Bolts Copper Nickel 90/10 at Mukau 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.
Mukau Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kinshasa, Congo, with over 8 years of experience serving global industries.
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