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Ramu Fasteners is a top-notch manufacturer and supplier of Super Duplex Threaded Rods based in Hyderabad, providing high-performance fastening solutions tailored for critical industrial applications. Renowned for their precision manufacturing and rigorous quality control, the company delivers threaded rods that comply with international standards and can handle demanding service conditions. Ramu Fasteners’ Super Duplex Threaded Rods are designed for outstanding strength, corrosion resistance, and long-lasting reliability. With a variety of diameters, lengths, and finishes available, these rods are perfect for harsh environments, ensuring reliable performance in offshore, marine, chemical, and infrastructure projects throughout India.
Super Duplex Threaded Rods are generally crafted from Super Duplex stainless steel grades like UNS S32750 and UNS S32760. Their composition features nearly equal parts of austenite and ferrite, along with high levels of chromium, molybdenum, and nitrogen. This well-balanced microstructure results in exceptional mechanical strength, impressive yield and tensile strength, and remarkable resistance to pitting, crevice corrosion, and stress corrosion cracking. These rods are built to last, offering durability, toughness, and fatigue resistance even in high-pressure and high-temperature 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.
Threaded rods made from Super Duplex Steel are essential in numerous performance related activities. In chemical processing, they control the contact with the aggressive chemicals and high pressure satisfactorily. In marine applications, they are able to withstand the effects of marine environment such as corrosion, thus providing durability. In the oil and gas industry, they offer secure fastening where stresses are high.
Super Duplex Threaded Rods find extensive use in industries that demand top-tier corrosion resistance and mechanical strength. They are commonly utilized in offshore oil and gas platforms, marine structures, desalination plants, chemical processing units, and power generation facilities. Additionally, they are employed in heat exchangers, pressure vessels, pipelines, and structural assemblies that face aggressive environments. Their capability to endure chloride-rich conditions and heavy mechanical loads makes them an excellent choice for coastal and subsea applications.
Ramu Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hyderabad, India, with over 8 years of experience serving global industries.
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