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Super Duplex Steel Fasteners are top-notch fastening components crafted for the toughest and most corrosive industrial settings. Made from advanced super duplex stainless steel grades like S32750 and S32760, these fasteners deliver remarkable strength, durability, and outstanding resistance to harsh, chloride-rich, and acidic environments. Thanks to their unique duplex austenitic-ferritic microstructure, they boast excellent mechanical properties, making them perfect for high-pressure, high-temperature, and aggressive conditions. Renowned for their impressive resistance to pitting, crevice corrosion, and stress corrosion cracking, Super Duplex Steel Fasteners are a go-to choice in offshore, marine, chemical, desalination, and heavy industrial applications where long-lasting reliability and structural integrity are essential.
| Specification | IS, BS, ASTM, ASME |
| Grade | Super Duplex Steel | UNS S32750 | S32760 |
| Standard | ASTM A479 ASME SA479 |
| Length | 3mm to 200mm |
| Form | Screw, Nuts, Bolts, Washers |
| Size | 3/6″ to 2″, M3 – M56, Custom Sizes |
| Application | Oil & Gas, Heat exchanger and condenser, Automobile Industry, Engineering, Power plants, Refineries & Petrochemicals, Ship building, Desalination Plants |
| 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 % |
| Grade | YS (MPa) | UTS (MPa) | % Elongation | Hardness(BHN) |
| UNS S32750 | 550 min. | 795 min. | 15 min. | 310 max. |
| UNS S32760 | 550 min. | 750 min. | 25 min. | 270 max. |
At Nasir Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Fasteners in Manama, Bahrain, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Bahrain, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Super Duplex Steel Fasteners are a go-to choice for offshore oil and gas platforms, subsea systems, and marine engineering projects, thanks to their incredible resistance to seawater corrosion. They’re crucial in chemical and petrochemical facilities, where they help secure pumps, valves, pressure vessels, and pipelines that face corrosive chemicals and high pressures. You’ll also find these fasteners in desalination plants, heat exchangers, structural assemblies, and heavy-duty mechanical systems. In the construction world, they offer dependable fastening solutions for connections that bear heavy loads and endure high stress. With their outstanding durability and resistance to corrosion, they’re perfect for long-lasting performance in even the toughest industrial settings.
