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At Russ Fasteners, we pride ourselves on being a leading manufacturer and supplier of Super Duplex Steel fasteners, right from our base in Pulau Ujong, Singapore. Our fasteners are celebrated for their exceptional mechanical strength and impressive corrosion resistance, making them perfect for even the toughest environments. Crafted from high-quality materials like UNS S32750 and S32760, these fasteners are built to endure extreme pressure, high temperatures, and harsh chemicals. We offer a comprehensive selection of bolts, nuts, washers, studs, and screws, available in both standard and custom specifications. Our fasteners are trusted across various industries, including offshore, marine, oil & gas, desalination, and chemical processing, all around the globe.
When it comes to Super Duplex Steel fasteners, Russ Fasteners typically uses UNS S32750 or S32760, which consist of about 25% chromium, 7% nickel, 3–4% molybdenum, and nitrogen. This unique blend creates an alloy that boasts an outstanding mix of strength and corrosion resistance, effectively guarding against stress corrosion cracking, pitting, and crevice corrosion. These fasteners deliver impressive tensile strength, usually ranging from 800 to 900 MPa, and they have double the yield strength of standard austenitic stainless steels. They maintain their toughness even in both low and high temperatures. Each fastener is meticulously engineered and rigorously tested for durability, metallurgical quality, and precise dimensions.
| 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 % |
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 fasteners are essential in several high-performance applications. In chemical processing, they efficiently address issues of working with aggressive chemicals and high pressure. In marine environments, they do not corrode with sea water hence they are very reliable in the long run. In the oil and gas industry, they offer secure fastening where high stress is exerted on the equipment. In addition, Super Duplex Steel fasteners are used in power generation and construction industries due to their excellent performance in severe conditions.
Super Duplex Steel fasteners are specifically designed for critical applications where extreme mechanical stress, corrosive conditions, and long-lasting reliability are a must. They find extensive use in offshore oil & gas platforms, subsea equipment, chemical processing plants, desalination facilities, and marine structures. These fasteners excel in environments that are rich in chlorides and acidic substances. Additionally, Russ Fasteners’ Super Duplex fasteners are utilized in heat exchangers, pressure vessels, and power generation systems, where both strength and corrosion resistance are vital.
Russ Fasteners is a leading manufacturer and supplier of high-quality fasteners in Pulau ujong, Singapore , with over 12 years of experience serving global industries.
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