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Puri Fasteners, a top-notch manufacturer and supplier located in Chennai, focuses on crafting high-quality Super Duplex Steel Washers that are perfect for tough and corrosive industrial settings. These washers are engineered with cutting-edge manufacturing techniques and strict quality controls, ensuring they deliver outstanding strength, impressive corrosion resistance, and long-lasting durability. Renowned for their reliability in challenging environments—like those rich in chloride, under high pressure, and at elevated temperatures—Super Duplex Steel Washers from Puri Fasteners find their place in various industries, including offshore, marine, chemical processing, petrochemical, desalination, and power generation. The company prides itself on precision, timely deliveries, and keeping customers happy, making it a go-to source for top-tier fastening components.
These Super Duplex Steel Washers are crafted from super duplex stainless steels, like Grade 2507, which contains around 25% chromium, 7% nickel, and 4% molybdenum, along with nitrogen to boost strength. This well-balanced composition offers remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in aggressive, chloride-laden environments. They boast high tensile and yield strength, excellent fatigue resistance, and impressive toughness, even when faced with high temperatures and pressures. Thanks to their dual-phase austenite-ferrite microstructure, these washers maintain mechanical stability, making them ideal for demanding industrial applications that require long-term reliability.
| 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 Washers are a go-to choice in situations where you really need high corrosion resistance and solid mechanical strength. In the offshore oil and gas sector, you’ll find them in subsea systems, platforms, risers, and pipeline assemblies, thanks to their ability to withstand seawater and tough chemicals. When it comes to marine engineering, they shine in shipbuilding, underwater equipment, and desalination plants. The chemical and petrochemical industries rely on these washers for heat exchangers, reactors, pumps, and high-pressure systems that operate in corrosive settings. Plus, they’re also used in power plants, mining equipment, and any structural applications that demand durability, precision, and long-lasting performance.
At Puri Fasteners, we make sure that our Super Duplex Steel washers are packed in the best way possible. Individual protection of each washer is done to avoid any form of damage, corrosion, or contamination that may occur during transportation. We employ the sturdy cartons and allow customization of packaging depending on your requirements. Proper labeling and packing enable identification and handling of the products as per the customers’ requirements, which are part of our mission to provide 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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