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Poang Fasteners stands out as a reliable manufacturer and supplier of Super Duplex Steel Stud Bolts based in Da Nang, Vietnam. We specialize in providing top-notch fastening solutions designed to thrive in tough environments. Super Duplex steel is celebrated for its unique dual-phase microstructure, combining austenite and ferrite, which gives it remarkable strength, toughness, and impressive resistance to corrosion. Our stud bolts are crafted to meet ASTM, DIN, and ISO standards and come in various sizes, finishes, and specifications to meet a wide range of industrial requirements. With exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, Poang Super Duplex Stud Bolts are widely utilized in marine, offshore, petrochemical, chemical, and power generation sectors around the globe. Super Duplex Steel stud bolts are available from Poang Fasteners, which are manufactured to be extremely high quality for use in the harshest conditions. These stud bolts are made from Super Duplex Steel which is a combination of austenitic and ferritic stainless steels that make these bolts very strong, corrosion resistant and very durable. Our Super Duplex Steel stud bolts are suitable for chemical processing, marine, and oil and gas industries due to their ability to provide secure fastening in harsh environments.
Poang Super Duplex Steel Stud Bolts are crafted from alloys like UNS S32750 and UNS S32760, featuring approximately 25% chromium, 7% nickel, 4% molybdenum, and nitrogen. This specific blend boosts their resistance to corrosion from chlorides, seawater, and harsh chemicals. They deliver impressive tensile strength (around 800–880 MPa), yield strength (about 550 MPa), and superior fatigue resistance compared to regular stainless steels. The dual-phase microstructure not only ensures strength and toughness but also helps prevent stress corrosion cracking. With excellent dimensional stability and weldability, these stud bolts are built to perform reliably in extreme high-pressure, high-temperature, and corrosive industrial settings.
| 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 stud bolts are used in a variety of demanding industries and applications. In chemical processing, they are able to deal with cases of contact with aggressive chemicals and high pressures. In marine applications, they are immune to the effects of sea water, thus they are very reliable. In the oil and gas industry, they offer secure fastening where stress is high. Also, Super Duplex Steel stud bolts are applied in power generation and construction industries due to their superior performance in harsh conditions.
Poang Super Duplex Steel Stud Bolts find their place in industries that require exceptional strength and corrosion resistance. In the marine and offshore sectors, they play a crucial role in securing vital components in ships, subsea equipment, and oil & gas platforms that face the challenges of seawater exposure. In the chemical and petrochemical fields, they are essential in reactors, heat exchangers, pipelines, and storage tanks that handle aggressive chemicals. Power generation and desalination plants also rely on them in high-pressure and high-temperature environments, ensuring safety and durability in their operations.
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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