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Ashraf Nickel Alloys stands out as a reliable manufacturer and supplier of Super Duplex Steel Threaded Rods in Riyadh, Saudi Arabia. We specialize in providing high-strength, corrosion-resistant fastening solutions tailored for tough industrial settings. Our threaded rods are crafted to meet ASTM, ASME, DIN, and ISO standards, using top-quality Super Duplex stainless steel. This material boasts a unique dual-phase austenitic-ferritic microstructure, which guarantees exceptional strength, durability, and resistance to pitting, crevice corrosion, and stress cracking. Ideal for marine, oil and gas, petrochemical, and construction sectors, our rods ensure secure fastening for heavy-duty applications, featuring precision threading and outstanding mechanical integrity for long-lasting performance in extreme conditions.
Super Duplex Steel Threaded Rods are composed of 24–26% chromium, 6–8% nickel, 3–4% molybdenum, nitrogen, and trace elements, achieving a PREN greater than 40 for remarkable corrosion resistance. These rods demonstrate a tensile strength of around 800 MPa and a yield strength of about 550 MPa, along with excellent fatigue resistance. Their dual-phase structure enhances hardness, dimensional stability, and resistance to sulfide stress corrosion cracking. Designed to excel in high-pressure, high-temperature environments, these Super Duplex threaded rods maintain low thermal expansion and superior mechanical stability, making them a top choice for critical fastening applications in aggressive chemical and chloride-rich 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″ |
| 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 % |
| Material | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) | Hardness Rockwell C (HR C) |
| Super Duplex Steel Threaded Rod | 760 | 550 | 15 | 32 Max |
At Ashraf Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Threaded Rod in Riyadh, Saudi Arabia, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Saudi Arabia, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Super Duplex Steel Threaded Rods find extensive use in offshore platforms, subsea pipelines, chemical processing plants, desalination units, shipbuilding, structural engineering, and heavy equipment assembly, thanks to their unparalleled corrosion resistance and strength. They play a crucial role in securely fastening flanges, pumps, valves, tanks, and pressure vessels in industries where durability and safety are of utmost importance.
