Tariku Metals, located in Addis Ababa, Ethiopia, has built a solid reputation as a manufacturer and supplier of Super Duplex Steel Hollow Bars. These bars are designed for a variety of industrial applications that require outstanding strength and resistance to corrosion. With a strong focus on precision engineering and adherence to global quality standards, Tariku Metals provides products that excel in tough environments, including offshore, chemical, and marine industries. Each hollow bar is meticulously crafted using cutting-edge metallurgical techniques, ensuring top-notch performance, reliability, and durability. Thanks to their commitment to innovation and rigorous quality control, the company has earned the trust of clients seeking high-grade duplex stainless steel products throughout Africa and beyond.
Super Duplex Steel Hollow Bars are made up of about 25% chromium, 7% nickel, 4% molybdenum, and nitrogen, resulting in a well-balanced austenitic-ferritic microstructure. This unique composition grants them exceptional resistance to pitting, crevice corrosion, and chloride stress cracking. The bars boast a tensile strength ranging from 800 to 1000 MPa, a yield strength close to 550 MPa, and remarkable toughness even in freezing temperatures. With a hardness of around 290 HB and impressive fatigue resistance, Super Duplex Hollow Bars are perfect for applications that demand mechanical stability under high pressure and corrosive conditions.
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 find extensive use in industries where high mechanical strength and corrosion resistance are crucial. They are perfect for creating heat exchangers, pressure vessels, chemical processing equipment, offshore drilling components, and marine hardware. In the oil and gas industry, these bars are essential for piping systems, risers, and manifolds that face the challenges of harsh seawater environments. Additionally, they play a vital role in desalination plants, power generation, and the pulp and paper industries for various structural and mechanical applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Tariku Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Addis Ababa, Ethiopia
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