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Puri Fasteners, a trusted manufacturer and supplier in Chennai, specializes in high-quality Copper Nickel 90/10 Stud Bolts, engineered to provide reliable and durable fastening solutions in harsh and corrosive environments. Manufactured from premium copper-nickel alloys, these stud bolts offer excellent resistance to seawater, biofouling, and chemical corrosion while maintaining superior mechanical strength. Copper Nickel 90/10 Stud Bolts are ideal for marine, offshore, and desalination applications where performance and longevity are critical. Puri Fasteners is committed to delivering precision-engineered products with consistent quality and timely supply, making them a preferred choice for industries requiring secure and long-lasting fastening solutions.
Copper Nickel 90/10 Stud Bolts are made from an alloy containing 90% copper and 10% nickel, often with small additions of iron or manganese to improve strength and corrosion resistance. This composition provides excellent resistance to seawater, chemical attack, and biofouling. The stud bolts offer high tensile and yield strength, good toughness, and superior fatigue resistance under mechanical stress. Their dimensional stability and corrosion resistance make them ideal for demanding environments, ensuring reliable and long-lasting performance in marine, offshore, and chemical processing industries.
| 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 widely used in industries exposed to corrosive or saline environments. They are commonly applied in shipbuilding, marine engineering, offshore platforms, and desalination plants due to their exceptional seawater resistance and ability to withstand biofouling. These stud bolts are also used in chemical processing units, pipelines, heat exchangers, and condenser systems where durability and corrosion resistance are crucial. Additionally, they find applications in power generation, HVAC systems, and industrial water treatment equipment. Their strength, reliability, and long-term performance make Copper Nickel 90/10 Stud Bolts a trusted choice for critical and demanding fastening applications.
Our Stud Bolts Copper Nickel 90/10 at Puri 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.
Puri Fasteners is a leading manufacturer and supplier of high-quality fasteners in Chennai, India, with over 8 years of experience serving global industries.
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