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Xuan Nickel Alloys is a leading manufacturer and supplier of Super Duplex Steel Bolts in Da Nang, Vietnam. Our Super Duplex Steel Bolts are engineered to provide exceptional strength, durability, and resistance to corrosion, making them ideal for the most demanding environments. Designed for high-stress applications, these bolts excel in industries such as oil and gas, marine, and chemical processing. At Xuan Nickel Alloys, we are committed to delivering top-quality products that adhere to stringent industry standards. Our advanced manufacturing processes and dedication to excellence ensure that each bolt offers reliable performance and longevity. Trust us to meet your needs with our high-performance Super Duplex Steel Bolts, trusted by clients across Da Nang and beyond.
Xuan Nickel Alloys is a reputable manufacturer and supplier based in Da Nang, Vietnam, specializing in high-quality Super Duplex Steel Bolts for critical industrial applications. These bolts are celebrated for their remarkable strength, toughness, and resistance to corrosion, making them ideal for reliable performance in tough and aggressive environments. With a unique dual-phase microstructure of austenite and ferrite, Super Duplex Steel Bolts excel in resisting pitting, crevice corrosion, and stress corrosion cracking caused by chlorides. At Xuan Nickel Alloys, we pride ourselves on delivering precision-engineered bolts that adhere to international standards, catering to industries like oil and gas, marine, chemical, petrochemical, desalination, and power generation.
| 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 |
Super Duplex Steel Bolts are crafted from a blend of high chromium (around 25%), nickel, molybdenum, and nitrogen, which boosts both their mechanical strength and corrosion resistance. They boast impressive tensile strength ranging from 800 to 1000 MPa, with yield strength nearly double that of standard austenitic stainless steels. Even in sub-zero temperatures, these bolts maintain excellent toughness and ductility. Their advanced alloy composition ensures they resist chloride-induced stress corrosion cracking, localized corrosion, and erosion, making them a dependable choice for fastening in high-pressure and corrosive settings.
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These Super Duplex Steel Bolts find extensive use in industries where secure and long-lasting fastening is crucial. They’re commonly utilized in offshore platforms, subsea pipelines, and marine structures that face saline and corrosive conditions. In the oil and gas sector, they’re essential for pressure vessels, process piping, and heat exchangers. Chemical and petrochemical facilities rely on them for managing aggressive fluids, while desalination and power generation plants depend on their durability for extended service life. Additionally, these bolts are integral to heavy-duty structural and engineering assemblies that demand maximum safety and reliability.
