Mourad Metals, located in Tunis, Tunisia, has earned a solid reputation as a reliable manufacturer and supplier of top-notch Duplex Steel Square Bars. The company focuses on crafting precision-engineered square bars that adhere to international standards, making them suitable for a wide range of industrial applications. By employing cutting-edge manufacturing techniques and rigorous quality control measures, Mourad Metals guarantees that each square bar offers consistent strength, durability, and outstanding corrosion resistance. With a commitment to timely deliveries, technical know-how, and customer satisfaction, they have established themselves as a trusted partner for engineers, fabricators, and industrial clients in need of high-quality Duplex Steel Square Bars for chemical, petrochemical, marine, and offshore settings.
These Duplex Steel Square Bars are made up of around 22% chromium, 5–6% nickel, and 3% molybdenum, along with trace amounts of nitrogen and other alloying elements. This unique blend gives the steel remarkable mechanical properties, such as high tensile and yield strength, toughness, and ductility. Duplex steel is particularly known for its excellent resistance to pitting, stress corrosion cracking, and general corrosion, especially in harsh, chloride-rich chemical environments. By merging the benefits of austenitic and ferritic stainless steels, these square bars maintain their structural integrity and reliable performance even in high-stress situations under tough operating conditions.
Standards : EN, DIN, JIS, ASTM, BS, ASME, AISI
Size : 10 mm To 100 mm Dia in
Length : 100 mm TO 6000 mm Length.
Specifications : ASTM A276, A479 / ASME SA276, SA479
Form : Square
Finish : Bright, Polish & Black
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
| S31803 / S32205 | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
Duplex Steel Square Bars are generally not ideal for cryogenic applications. Their performance may deteriorate at extremely low temperatures, making materials like austenitic stainless steel more suitable for such conditions.
To choose the right Duplex Steel Square Bar, consider factors such as the required strength, corrosion resistance, temperature conditions, and industry-specific demands. Ensure compatibility with your application’s mechanical and environmental requirements.
Yes, Duplex Steel Square Bars require regular inspection, especially in harsh environments. Checking for signs of corrosion, wear, or structural integrity ensures they continue performing optimally in critical applications.
Duplex Steel Square Bars find extensive use in industries like chemical, petrochemical, marine, oil and gas, and desalination, thanks to their impressive mechanical strength and corrosion resistance. They are perfect for creating structural components, pumps, valves, piping systems, heat exchangers, and pressure vessels that are exposed to aggressive chemicals or high-pressure environments. Moreover, these square bars are well-suited for offshore platforms, chemical reactors, and seawater systems, where both durability and a long service life are essential.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Mourad Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Tunis, Tunisia
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