Neith Metals, based in Cairo, Egypt, stands out as a top manufacturer and supplier of Super Duplex Steel Hollow Bars, known for their remarkable strength, durability, and resistance to corrosion. The company is dedicated to crafting high-quality metal products that align with global standards and serve a variety of industrial sectors. With cutting-edge technology, state-of-the-art manufacturing facilities, and skilled craftsmanship, Neith Metals guarantees precision and consistency in every item they produce. Catering to industries like oil & gas, marine, chemical, and construction, the company is steadily building a solid reputation for reliability, performance, and customer satisfaction both in Egypt and on the international stage.
Super Duplex Steel Hollow Bars are primarily made up of chromium (25%), nickel (7%), molybdenum (4%), and nitrogen, which together create a balanced dual-phase microstructure of austenite and ferrite. This unique composition leads to impressive tensile and yield strength, outstanding resistance to corrosion and pitting, and exceptional toughness. These bars also show remarkable resistance to stress corrosion cracking and fatigue, even when faced with extreme temperatures and pressures. With mechanical properties that typically achieve tensile strengths between 800–1000 MPa, Super Duplex Steel Hollow Bars are designed for long-lasting performance in demanding industrial settings.
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.
These bars find extensive applications in industries that demand top-notch corrosion resistance and mechanical strength. They are particularly suited for the oil & gas sector, where they are used in offshore platforms, heat exchangers, and drilling equipment. In the marine industry, they play a crucial role in shafts, propellers, and piping systems that are constantly exposed to seawater. Chemical and petrochemical plants rely on them for pressure vessels, condensers, and processing units. Moreover, Super Duplex Steel Hollow Bars are also utilized in construction, desalination, and the paper & pulp industries, ensuring durability, stability, and efficiency even in the toughest operating conditions.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Neith Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Alexandria, Egypt
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