Dhruv Metals, a leading manufacturer and supplier located in Hyderabad, India, specializes in high-quality Super Duplex Steel Hollow Bars tailored for tough industrial applications. Renowned for their remarkable corrosion resistance and exceptional mechanical strength, these hollow bars are crafted using cutting-edge technology and rigorous quality control measures. At Dhruv Metals, we guarantee that each hollow bar adheres to international standards, ensuring dependable performance even in the harshest environments. Our Super Duplex Steel Hollow Bars find extensive use across various industries where durability, toughness, and resistance to chloride-induced corrosion are crucial, establishing us as a reliable supplier in both local and global markets.
These Super Duplex Steel Hollow Bars primarily consist of chromium (24–26%), nickel (6–8%), molybdenum (3–5%), nitrogen (0.2–0.3%), along with balanced amounts of iron and trace alloying elements. The unique dual-phase microstructure of ferrite and austenite provides outstanding strength and remarkable resistance to stress corrosion cracking, pitting, and crevice corrosion. Typical mechanical properties include a tensile strength of around 795 MPa, yield strength exceeding 550 MPa, elongation close to 15%, and commendable impact toughness. Their hollow design not only saves weight but also facilitates machining without sacrificing structural integrity.
Specifications : ASTM A276, ASME SA276
Standard : ASTM, ASME
Size : 6 mm to 120 mm.
Length : 1 to 6 Meters, Custom Cut Lengths
Dimensions : EN, DIN, JIS, ASTM, BS, ASME, AISI
| Material | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| Super Duplex Steel | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 | 58.095 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
Yes, Super Duplex Steel Hollow Bars can withstand high temperatures due to their excellent strength and corrosion resistance. They are suitable for applications in environments up to around 300°C (572°F), depending on the specific alloy.
Super Duplex Steel Hollow Bars and Rods are manufactured through hot or cold working processes, including extrusion and forging, followed by heat treatment, cold drawing, and precision machining for enhanced strength and corrosion resistance.
Super Duplex Steel Hollow Bars have excellent natural corrosion resistance due to their high chromium and molybdenum content, making additional protective coatings generally unnecessary. However, in highly aggressive environments, coatings may offer extra protection.
Super Duplex Steel Hollow Bars are widely utilized in offshore oil and gas platforms, subsea equipment, chemical processing facilities, and desalination systems, thanks to their exceptional corrosion resistance and strength. They are perfect for crafting high-performance shafts, hydraulic components, structural parts, and pressure vessels that face aggressive environments. The superior weldability and fatigue resistance of these hollow bars make them ideal for critical applications in marine engineering, power generation, and the petrochemical industry, where long-lasting durability and reliability in corrosive conditions are essential.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Dhruv Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hyderabad , India
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