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Wai Nickel Alloys, a top-notch manufacturer and supplier located in Naypyidaw, Myanmar, specializes in high-quality Super Duplex Steel Fasteners. These fasteners are crafted for outstanding strength, corrosion resistance, and reliability, making them perfect for tough industrial settings. Using cutting-edge machining and heat treatment techniques, they guarantee precise dimensions, a superior surface finish, and excellent mechanical properties. Super Duplex Fasteners are particularly resistant to pitting, crevice corrosion, and stress corrosion cracking, even in challenging environments like chloride and seawater. They’re ideal for high-pressure and high-temperature applications, widely used in industries that demand durable fastening solutions in harsh conditions.
Super Duplex Steel Fasteners are made up of Chromium (24–26%), Nickel (6–8%), Molybdenum (3–5%), and a balanced mix of Iron, along with trace amounts of Nitrogen, Manganese, and Silicon. This dual-phase alloy boasts impressive tensile strength (800–1000 MPa), yield strength (~550 MPa), and remarkable impact toughness. These fasteners excel in resisting chloride stress corrosion, oxidation, and fatigue failure, maintaining their stability in both high and low temperatures. The combination of exceptional mechanical strength and corrosion resistance makes them perfect for environments exposed to seawater, acidic solutions, and chemically aggressive industrial settings.
| 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 Wai Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Fasteners in Naypyidaw, Myanmar, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Myanmar, 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 find their place in various industries that need reliable and corrosion-resistant fastening solutions. In the oil and gas sector, they’re essential for offshore platforms, subsea equipment, and pipelines that face seawater and harsh chemicals. The chemical and petrochemical industries use them in pressure vessels, heat exchangers, and reactors. In the marine sector, they’re ideal for shipbuilding, desalination plants, and coastal infrastructure. Their durability and resistance to corrosion make them a go-to choice for applications that operate under extreme conditions.
