Mourad Metals, located in Tunis, Tunisia, has built a solid reputation as a reliable manufacturer and supplier of high-quality Duplex Steel Flat Bars. The company is dedicated to crafting precision-engineered flat bars that adhere to international standards, catering to a diverse array of industrial needs. By employing cutting-edge manufacturing techniques and maintaining rigorous quality control, Mourad Metals guarantees that each flat bar offers consistent strength, durability, and resistance to corrosion. With a strong commitment to timely deliveries, technical know-how, and customer satisfaction, they have become a go-to partner for engineers, fabricators, and industrial clients in search of top-notch Duplex Steel Flat Bars for challenging environments in the chemical, petrochemical, and marine sectors.
Duplex Steel Flat 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 them 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 chloride-rich and aggressive chemical settings. By combining the advantages of both austenitic and ferritic stainless steels, Duplex Flat Bars are perfect for applications that demand a mix of strength, durability, and corrosion resistance in tough operating conditions.
| Size | : | 10 mm To 100 mm Dia in 100 mm TO 6000 mm Length. |
| Standard | : | ASTM A276, A479 / ASME SA276, SA479, ASTM A789 / A789M & ASTM A928 / A928M |
| Grade | : | UNS NO. S 31803, S 32205, S 32550, S 32750, S 32760. |
| Finish | : | Bright, Polish & Black |
| End | : | Flat |
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 |
| Grade | Density | Melting point | Yield strength(0.2% offset) | Tensile strength | Elongation |
|---|---|---|---|---|---|
| S32750/S32760 | 7.8g/cm3 | 1350°C(2460°F) | PSi-80000, MPa-550 | PSi-116000, MPa-800 | 15% |
To maintain Duplex Steel Flat Bars, regularly clean them to remove debris, inspect for corrosion, and apply protective coatings if necessary. Ensure proper storage to prevent exposure to harsh chemicals or extreme conditions.
Yes, Duplex Steel Flat Bars are suitable for natural gas applications due to their excellent corrosion resistance and strength, making them ideal for pipelines and equipment exposed to natural gas environments.
Duplex Steel Flat Bars are partially magnetic due to their ferritic phase. While not as magnetic as pure ferritic steels, they may exhibit some magnetic properties, especially in certain conditions.
These Duplex Steel Flat Bars find extensive use in the chemical, petrochemical, marine, and desalination industries, thanks to their impressive mechanical strength and corrosion resistance. They are often utilized in the fabrication of structural components, pressure vessels, heat exchangers, piping systems, pumps, and valves that are subjected to harsh chemicals or high-stress situations. Moreover, they are well-suited for offshore platforms, chemical reactors, and seawater systems where reliability and longevity 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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