Semih Metals, based in Istanbul, Turkey, has earned a solid reputation as a reliable manufacturer and supplier of top-notch Super Duplex Steel Square Bars, catering to industries all around the world. With a strong commitment to precision engineering and strict adherence to international quality standards, Semih Metals delivers square bars that boast remarkable strength, toughness, and outstanding resistance to corrosion. These Super Duplex Steel Square Bars are specifically crafted for use in demanding environments, ensuring reliability even in high-pressure and corrosive conditions. Thanks to their state-of-the-art production facilities and unwavering focus on quality, Semih Metals guarantees consistent performance, precise dimensions, and timely delivery for customers globally.
The composition of Super Duplex Steel Square Bars features a well-balanced microstructure of austenite and ferrite, enriched with high levels of chromium (24–26%), nickel (6–8%), molybdenum (3–5%), tungsten, and nitrogen. This unique blend provides exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in chloride-rich settings. Their mechanical properties include impressive tensile strength of around 800–880 MPa, yield strength near 550 MPa, and remarkable toughness even in sub-zero temperatures. The combination of superior corrosion resistance and high mechanical strength makes these bars perfect for critical industrial applications.
| 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.
Super Duplex Steel Square Bars find extensive use in sectors like oil and gas, chemical processing, marine, desalination, and power generation. They are particularly well-suited for manufacturing pump shafts, fasteners, valves, flanges, structural components, and equipment for offshore platforms that need to endure harsh chemical and saline environments. Their exceptional durability minimizes downtime and maintenance costs, ensuring long-term reliability. Semih Metals’ Super Duplex Steel Square Bars are the go-to choice for demanding industrial applications that require both superior strength and exceptional resistance to tough conditions.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Semih Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Istanbul, Turkey
Copyright 2024 Semih Metals. All rights reserved