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Bilal Fasteners stands out as a reliable manufacturer and supplier of top-notch Super Duplex Steel Nuts, right from the heart of Jakarta, Indonesia. Our Super Duplex nuts are designed to provide exceptional strength and corrosion resistance, even in the toughest industrial settings. Built to meet international standards, these nuts are perfect for critical applications in offshore, marine, petrochemical, and chemical processing industries. With cutting-edge manufacturing capabilities and rigorous quality control, Bilal Fasteners guarantees dependable performance, durability, and precision. Our Jakarta facility allows for swift distribution throughout Indonesia and beyond, making us a trusted partner for high-quality fastening solutions in harsh and corrosive environments.
| 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 generally crafted from grades like UNS S32750 and UNS S32760, which feature a well-balanced microstructure of austenite and ferrite. This composition boasts high levels of chromium (24–26%), molybdenum (3–5%), and nitrogen, ensuring outstanding resistance to pitting, crevice corrosion, and chloride-induced stress corrosion cracking. These nuts demonstrate impressive tensile strength (800–1000 MPa), remarkable fatigue resistance, and enhanced toughness compared to standard stainless steels. Their exceptional mechanical properties, even at higher temperatures, make them ideal for high-stress, corrosive, and load-bearing environments where long-lasting reliability is crucial.
Super Duplex Steel Nuts find their place in critical applications where both corrosion resistance and mechanical strength are a must. They are commonly used in offshore oil rigs, subsea pipelines, and marine structures that face high chloride exposure. In the petrochemical and chemical sectors, they play a vital role in securing components in reactors and other equipment, ensuring safety and reliability. Their ability to withstand harsh conditions makes them a go-to choice for engineers and manufacturers looking for durable fastening solutions in demanding environments.
Bilal Fasteners is a leading manufacturer and supplier of high-quality fasteners in Indonesia, Jakarta, with over 8 years of experience serving global industries.
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