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Puri Fasteners, a prominent manufacturer and supplier located in Chennai, is all about providing top-notch Super Duplex Steel Bolts designed for tough industrial settings. With a keen emphasis on quality, durability, and precision in manufacturing, they deliver bolts that excel in resisting corrosion, pitting, and stress cracking. Their products adhere to strict international standards and are highly regarded in offshore, chemical, and marine industries. Puri Fasteners merges cutting-edge production technology with a customer-first approach to guarantee reliable fastening solutions that can handle extreme pressures, high temperatures, and challenging operational conditions.
Super Duplex Steel Bolts feature a unique microstructure that combines austenite and ferrite, enriched with high levels of chromium, molybdenum, and nitrogen. This special blend offers outstanding corrosion resistance, especially against pitting and crevice corrosion caused by chlorides. On the mechanical side, these bolts boast impressive tensile strength, high yield strength, excellent fatigue resistance, and remarkable toughness, even in low temperatures. Their well-balanced structure also ensures great resistance to stress corrosion cracking, making them perfect for high-pressure and corrosive environments while maintaining long-term structural integrity.
| 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.
These Super Duplex Steel Bolts find extensive application in industries that demand high strength and exceptional corrosion resistance. They’re particularly suited for offshore oil and gas platforms, subsea equipment, and desalination plants, thanks to their remarkable durability in seawater conditions. Chemical processing facilities rely on these bolts for reactors, pressure vessels, pumps, and heat exchangers that come into contact with harsh chemicals. In the marine industry, they play a crucial role in shipbuilding and seawater handling systems. Moreover, these bolts are also utilized in power generation, pulp and paper industries, and structural applications where durability, reliability, and resistance to extreme conditions are a must.
At Puri Fasteners, we take utmost care in packing the Super Duplex Steel bolts for our customers. Every bolt is covered with protective materials to avoid any form of damage, corrosion, or contamination during transportation. We utilize sturdy cartons and provide packaging services that meet your requirements. Clear labeling and packing also help in making identification and handling easier, which is a testimony of our quality products in perfect 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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