Maduka Metals, a reputable manufacturer and supplier located in Abuja, Nigeria, specializes in high-quality Super Duplex Steel Square Bars tailored to meet the rigorous demands of various industries. These bars are celebrated for their exceptional strength, impressive corrosion resistance, and remarkable performance even in tough environments. Maduka Metals is committed to ensuring that every product adheres to international quality and durability standards, making them perfect for sectors like marine, chemical, and oil & gas. With cutting-edge manufacturing technology and a customer-centric approach, Maduka Metals remains a trusted provider of top-notch Super Duplex Steel Square Bars in Nigeria and beyond.
Super Duplex Steel Square Bars are made up of chromium (around 25%), nickel (7%), molybdenum (3–4%), nitrogen, and the balance being iron, which gives them outstanding resistance to pitting and crevice corrosion. They boast impressive mechanical properties, featuring a high tensile strength of about 800 MPa and a yield strength of around 550 MPa. Thanks to their balanced austenitic-ferritic structure, these bars offer superior toughness, hardness, and weldability, making them ideal for high-pressure and high-temperature applications across a variety of industrial settings.
| Standard | : | ASTM / ASME SA 276 / A 479 |
| Grade | : | UNS S 32750, S 32760 , S 32950 |
| Range | : | 10 mm To 100 mm Dia in 100 mm TO 6000 mm Length. |
| Finish | : | Bright Black Polish |
| Form | : | Rectangle |
| 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 % |
To maintain Super Duplex Steel Square Bars, clean them regularly to remove contaminants, avoid exposure to extreme temperatures for prolonged periods, and inspect for signs of corrosion or damage in harsh environments.
Yes, Super Duplex Steel Square Bars can be welded using techniques like TIG or MIG welding. Proper preheating and post-weld heat treatment are essential to maintain their corrosion resistance and mechanical properties.
Yes, Super Duplex Steel Square Bars are suitable for natural gas applications due to their excellent resistance to corrosion, high strength, and ability to withstand harsh environments commonly found in the natural gas industry.
These Super Duplex Steel Square Bars find extensive use in industries that demand exceptional strength and corrosion resistance. Typical applications include offshore oil drilling, chemical processing, desalination plants, and marine engineering. They are also utilized in heat exchangers, pressure vessels, pumps, and shafts where high mechanical performance is crucial. Their ability to resist chloride stress corrosion cracking makes them particularly suitable for coastal and seawater environments. Furthermore, Super Duplex Steel Square Bars are favored in the pulp and paper industries, power generation, and structural frameworks that require durability and a long service life.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Maduka Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Abuja, Nigeria
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