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Poang Fasteners stands out as a top manufacturer and supplier of Super Duplex Steel Bolts in Da Nang, Vietnam, providing fastening solutions tailored for the toughest industries. Our bolts are crafted to meet ASTM, DIN, and ISO standards, guaranteeing exceptional strength, durability, and resistance to corrosion. Built to thrive under high pressure and in harsh conditions, Poang’s super duplex bolts come in a variety of grades, sizes, and finishes. They’re widely utilized in offshore, petrochemical, marine, and power generation sectors, delivering reliable fastening, a long service life, and outstanding mechanical integrity, making them the go-to choice for critical industrial applications.
Poang Super Duplex Steel Bolts are made from top-notch grades UNS S32750 and UNS S32760, showcasing a dual-phase austenitic-ferritic microstructure. This distinctive composition provides impressive tensile strength, excellent yield properties, and remarkable impact toughness. Renowned for their outstanding resistance to chloride-induced stress corrosion cracking, pitting, and crevice corrosion, these bolts perform exceptionally well in seawater and aggressive chemical settings. They also boast excellent hardness, precise dimensions, and fatigue resistance under cyclic loads. With precision-engineered threading, Poang’s super duplex bolts ensure secure fastening, making them incredibly reliable in both static and high-pressure dynamic conditions.
| 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″ |
| 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 |
| 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 bolts that are used in many high performance industries. In chemical processing, they are able to cope with the attack of aggressive chemicals and high pressures. In marine applications, they are able to withstand the effects of saltwater thus are long lasting. In the oil and gas industry, they offer secure fastening where there is high stress. Furthermore, Super Duplex Steel bolts are applied in power generation and construction because of their ability to withstand harsh conditions.
Poang Super Duplex Steel Bolts find extensive use in industries that demand strength, toughness, and corrosion resistance. In offshore oil and gas platforms, they’re perfect for subsea pipelines, drilling equipment, and structural assemblies exposed to seawater. In chemical and petrochemical facilities, they hold up against acidic, alkaline, and solvent-rich environments. The marine industry relies on them for shipbuilding, port structures, and coastal engineering. Power plants and desalination facilities also benefit from their robust performance, making these bolts an essential component in various critical applications.
Poang Fasteners is a leading manufacturer and supplier of high-quality fasteners in Da Nang, Vietnam, with over 8 years of experience serving global industries.
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