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Puri Fasteners, a top-notch manufacturer and supplier located in Chennai, specializes in high-quality Super Duplex Steel Stud Bolts that are designed to provide remarkable strength and corrosion resistance, even in the toughest industrial settings. Crafted with cutting-edge machining technology and rigorous quality checks, these stud bolts are built to last, offering excellent durability and resistance to pitting and crevice corrosion, along with outstanding performance in environments rich in chlorides and under high pressure. You’ll find Super Duplex Steel Stud Bolts from Puri Fasteners being utilized across various sectors, including offshore, marine, chemical processing, petrochemical, desalination, and power generation. With a strong commitment to precision, timely delivery, and customer satisfaction, the company has established itself as a reliable provider of high-performance fastening solutions.
Typically, Super Duplex Steel Stud Bolts are made from alloys like Super Duplex 2507, which includes 25% chromium, 7% nickel, 4% molybdenum, and a touch of nitrogen to boost strength. This unique blend offers exceptional resistance to harsh chloride environments, significantly reducing the chances of pitting, crevice corrosion, and stress corrosion cracking. These stud bolts are known for their high tensile and yield strength, impressive fatigue resistance, and remarkable toughness, even when faced with elevated temperatures and pressures. Their well-balanced austenite-ferrite microstructure ensures mechanical stability, making them ideal for critical industrial applications that demand long-lasting strength and corrosion resistance.
| Standard | DIN, ASTM, BS and all International Standards |
| Specifications | ASTM A479 & ASME SA479 |
| UNS S32760 Nut and Bolts Size | M3 To M56 3/6″ to 2″ |
| Length | 3 to 200 MM |
| Super Duplex Steel 2207 Machine Screws Size | M1.6 To M12 |
| Duplex Steel 2205 Washers Size | M3 To M56 3/6″ to 2″ |
| Tensile Strength(MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) | Hardness Rockwell C (HR C) | |
| Super Duplex Steel Bolts | 760 | 550 | 15 | 32 Max |
| Phosphorus | Sulphur | Silicon | Carbon | Manganese | Nickel | Molybdenum | Nitrogen | Copper | Chromium |
|---|---|---|---|---|---|---|---|---|---|
| 0.035 % max | 0.02 % max | 0.80 % max | 0.03% Max | 1.20 % max | 6.00 – 8.00 % | 3.00 – 5.00 % | 0.24 – 0.32 % | 0.50 % max | 24.0 – 26.0 % |
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.
Super Duplex Steel Stud Bolts are widely utilized in industries where high mechanical strength and exceptional resistance to corrosion are crucial. In the offshore oil and gas industry, you’ll find them in subsea pipelines, risers, platforms, and drilling equipment, thanks to their remarkable durability against seawater. In marine engineering, they play a vital role in shipbuilding, underwater installations, and desalination systems. Chemical and petrochemical plants rely on these stud bolts for reactors, valves, pumps, and heat exchangers that come into contact with corrosive chemicals. They’re also used in power plants, mining machinery, the pulp and paper industry, and any structural systems that need strong and long-lasting fastening solutions.
At Puri Fasteners, we make sure that our Super Duplex Steel stud bolts are packed in the most appropriate manner. Every stud bolt is covered with protective materials to avoid scratching, rusting, and contamination of the bolt during transportation. We use durable cartons and provide custom packaging to suit your needs and preferences in the best way possible. Clear labeling and packing also help in identification and handling of the products, which is a proof of our high quality products in good condition.
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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