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Wai Nickel Alloys, based in Naypyidaw, Myanmar, stands out as a top manufacturer and supplier of high-quality Super Duplex Steel Bolts. These bolts are celebrated for their remarkable strength, resistance to corrosion, and long-lasting durability, making them perfect for tough industrial settings. At Wai Nickel Alloys, every product is crafted to meet global standards, thanks to cutting-edge manufacturing methods and rigorous quality control. Their Super Duplex Steel Bolts are highly valued for their ability to endure extreme conditions, making them a go-to choice for industries like marine, petrochemical, power generation, and offshore engineering.
These Super Duplex Steel Bolts are made up of chromium (24–26%), nickel (6–8%), molybdenum (3–4%), tungsten, and nitrogen, which together provide outstanding corrosion resistance and mechanical strength. They boast a high tensile strength of about 800 MPa and a yield strength of around 550 MPa. With a unique dual-phase microstructure that combines ferritic and austenitic characteristics, these bolts deliver excellent toughness, fatigue resistance, and the ability to resist stress corrosion cracking, even in harsh environments rich in chlorides or at elevated temperatures.
| 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″ |
| Grade | C | Cr | Mn | Mo | N | Ni | P | S | Si | Cu |
| Super Duplex Steel Bolts | 0.04 max | 24.0-27.0 | 1.5 max | 0.1-0.25 | 4.5-6.5 | 6.0-8.0 | 0.040 max | 0.030 max | 1.0 max | 1.5 |
| 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 |
At Wai Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Bolts 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 Bolts are widely utilized in sectors that require both high strength and corrosion resistance. They’re perfect for offshore oil and gas platforms, chemical processing facilities, desalination plants, and marine engineering projects. Additionally, these bolts are essential in power generation systems, heat exchangers, and pressure vessels, where reliability under extreme pressure and temperature is crucial. They also play a vital role in structural assemblies exposed to seawater and aggressive conditions, ensuring a long service life, stability, and safety in critical operations.