Semih Metals, located in Istanbul, Turkey, has earned a solid reputation as a reliable manufacturer and supplier of top-notch Super Duplex Steel Flat Bars, catering to industries around the world. With a focus on precision engineering and a strict commitment to international standards, Semih Metals produces flat bars that boast remarkable strength, toughness, and outstanding resistance to corrosion. These Super Duplex Steel Flat Bars are designed to perform consistently in tough and demanding environments, making them perfect for critical industrial applications. Thanks to their state-of-the-art production facilities and dedication to quality, Semih Metals guarantees reliable product performance, precise dimensions, and timely delivery for customers in need of durable, high-performance steel solutions.
The composition of Super Duplex Steel Flat Bars features a well-balanced microstructure of austenite and ferrite, with essential alloying elements like chromium (24–26%), nickel (6–8%), molybdenum (3–5%), tungsten, and nitrogen. This unique blend offers exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking, especially in environments rich in chlorides and acids. Their mechanical properties include impressive tensile strength of around 800–880 MPa, yield strength near 550 MPa, and excellent toughness even in freezing temperatures. The combination of superior corrosion resistance and high mechanical strength makes these flat bars ideal for demanding, long-lasting applications.
| 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 |
| Tensile Strength | 90,000 psi |
| Yield Strength | 50,000 psi |
| Elongation In 2” | 20% |
Reduction of Area | 30% |
Brlnell Hardness | 180-220 |
| 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 Flat Bars are highly recyclable. Due to their composition and durability, they can be reused in various industries without compromising their properties or performance.
Super Duplex Steel Flat Bars are generally not suitable for cryogenic applications due to their brittleness at extremely low temperatures. Materials like austenitic stainless steel are often preferred for such uses.
Yes, Super Duplex Steel Flat Bars are suitable for underground applications due to their excellent corrosion resistance, especially in harsh, corrosive environments such as soil or groundwater exposure.
Super Duplex Steel Flat Bars find extensive use in the oil and gas, chemical processing, marine, desalination, and power generation sectors. They are perfect for crafting structural components, shafts, fasteners, flanges, and other equipment that come into contact with harsh chemicals and seawater. Their remarkable durability minimizes maintenance and downtime, ensuring dependable performance in challenging operating conditions. Semih Metals’ Super Duplex Steel Flat Bars offer robust, long-lasting, and cost-effective solutions for industries that require high-strength, corrosion-resistant materials for critical applications.
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
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