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Poang Fasteners stands out as a leading manufacturer and supplier of Super Duplex Steel Fasteners in Da Nang, Vietnam. We specialize in high-performance fastening solutions designed to thrive in extreme environments. Our Super Duplex fasteners are celebrated for their remarkable strength and exceptional corrosion resistance, making them perfect for harsh conditions like seawater, chloride-rich areas, and chemical processing environments. Adhering to ASTM, DIN, and ISO standards, our product range includes bolts, nuts, washers, screws, and threaded rods. With impressive resistance to pitting, crevice, and stress corrosion cracking, Poang Super Duplex Steel Fasteners ensure durability, safety, and reliability for critical applications in marine, petrochemical, offshore, and defense sectors.
Crafted from high-alloy stainless steels like UNS S32750 and S32760, Poang Super Duplex Steel Fasteners contain around 25% chromium, 7% nickel, 4% molybdenum, and nitrogen. This dual-phase structure, combining austenite and ferrite, delivers exceptional mechanical strength and outstanding resistance to pitting, crevice, and chloride stress corrosion cracking. They boast impressive tensile strength (approximately 800–880 MPa), high yield strength (around 550 MPa), and excellent fatigue resistance. With enhanced thermal stability, weldability, and toughness, Super Duplex fasteners are perfectly suited for high-pressure, high-temperature, and highly corrosive environments where traditional stainless steels might fall short.
| 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 % |
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 fasteners are essential in several high-performance applications. In chemical processing, they efficiently address issues of working with aggressive chemicals and high pressure. In marine environments, they do not corrode with sea water hence they are very reliable in the long run. In the oil and gas industry, they offer secure fastening where high stress is exerted on the equipment. In addition, Super Duplex Steel fasteners are used in power generation and construction industries due to their excellent performance in severe conditions.
Poang Super Duplex Steel Fasteners find extensive use in industries that demand exceptional corrosion resistance and strength. In the marine and offshore sectors, they are utilized in ships, subsea equipment, and oil & gas platforms that face the challenges of seawater exposure. In chemical and petrochemical plants, they secure pipelines, heat exchangers, and pressure vessels that handle corrosive media. The power generation and desalination industries also rely on them for their impressive resistance to chloride-induced corrosion, ensuring safety and reliability in 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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