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Poang Fasteners is a well-respected manufacturer and supplier of Super Duplex Steel Nuts based in Da Nang, Vietnam. We provide top-notch fastening solutions that are specifically designed to withstand extreme industrial conditions. Our super duplex nuts are renowned for their exceptional strength and corrosion resistance, crafted to meet the highest performance and durability standards. Adhering to ASTM, DIN, and ISO specifications, these nuts come in various grades and sizes to cater to a wide range of applications. Trusted by industries such as oil & gas, chemical processing, marine, and offshore, Poang Fasteners guarantees that every nut offers unmatched quality, reliability, and longevity.
Poang Super Duplex Steel Nuts are crafted from high-quality grades like UNS S32750 and S32760. Their unique dual-phase microstructure, which blends austenite and ferrite, delivers remarkable tensile strength, toughness, and resistance to chloride stress corrosion cracking. These nuts boast excellent yield strength, impressive hardness, and outstanding fatigue resistance, making them perfect for high-pressure and high-temperature settings. Super duplex steel also provides exceptional protection against pitting, crevice, and general corrosion, even in seawater and harsh chemical environments. With precision-engineered threading, Poang’s nuts ensure secure fastening and dependable performance in extreme operating 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 nuts are used in many critical applications. In chemical processing they are able to handle the effects of aggressive chemicals and high pressures. In marine applications, they are immune to the effects of sea water thus providing long service life. In the oil and gas industry, they offer secure fastening where high stress is exerted. Also, Super Duplex Steel nuts are applied in power generation and construction sectors due to their high performance in harsh conditions.
Poang Super Duplex Steel Nuts find extensive use in demanding industries where mechanical strength and corrosion resistance are paramount. In offshore oil & gas platforms, they secure equipment exposed to seawater and subsea pipelines. In the chemical and petrochemical sectors, they guarantee durability in environments filled with strong acids and aggressive solvents. Power plants, desalination facilities, and marine engineering projects also depend on these nuts for their ability to endure high stress and corrosive conditions.
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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