Marzouk Steel, based in Tunis, Tunisia, is a trusted name when it comes to manufacturing and supplying top-notch Alloy Steel Grade 91 coils. The company stands out for its cutting-edge processing facilities, rigorous quality assurance, and adherence to international standards. Marzouk Steel’s Grade 91 coils are designed for exceptional strength, creep resistance, and long-lasting performance even at high temperatures. Each coil is crafted with meticulous attention to dimensional accuracy and consistent mechanical properties. Industries such as power generation, petrochemicals, and heavy engineering rely on Marzouk Steel for reliable alloy steel solutions that are crucial for operational safety, efficiency, and durability around the globe.
The Alloy Steel Grade 91 coils from Marzouk Steel are made from a chromium-molybdenum-vanadium alloy steel, with a carefully regulated carbon content. This unique blend offers outstanding creep resistance, high-temperature strength, and oxidation resistance. The mechanical properties include impressive tensile and yield strength, good toughness, and excellent resistance to thermal fatigue. Through advanced heat treatment and controlled rolling processes, the microstructure is refined, boosting long-term stability under extreme operating conditions. Each coil is subjected to thorough mechanical and chemical testing to guarantee consistent quality and compliance with ASTM and ASME standards.
| Specifications | ASTM A387 / ASME SA387 |
| Standard | ASTM, ASME and API |
| Thickness | 4.0mm – 100mm |
| Specialize | Shim Sheet, Perforated Sheet, B. Q. Profile. |
| Form | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) |
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Grade | ASTM A387 GR.91 |
| Grade | C | Ni | Mn | S | V | Al | Si | Nb | Cr | Mo | Nitrogen | P |
| A387 GR.91 | 0.06-0.15 max | 0.43 max | 0.25-0.66 max | 0.012 max | 0.16-0.27 max | 0.05 max | 0.18-0.56 max | 0.05-0.11 max | 7.90-9.60 max | 0.80-2.10 max | 0.025-0.080 max | 0.025 max |
| Grade | A387 GR.91 CL.2 | |||
| A387 GR.91 | Thickness mm | Yield Min Mpa | Tensile Mpa | Elongation Min % |
| t≦50 | 415 | 585-760 | 18 | |
| 50<t≦200 | – | – | – | |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Marzouk Steel based in Tunis, Tunisia is a trusted manufacturer and supplier for Alloy Steel Grade 91 Coils of great quality. In fact, we have earned our reputation for providing a variety of top-notch steel products-such as Structural Steel, Alloy Steel, Carbon Steel, Mild Steel, and Galvanized Steel-with emphasis on Structural Steel Sheets and Plates. Basic product lines include a complete range of Pipes, Tubes, Flanges, Forged Fittings, Bars, and other forms. Marzouk Steel is committed to its delivery and customer service, thus ensuring that they procure the best raw materials to guarantee high strength and durability with performance specifically for critical industrial applications. Contact us anytime for your Structural Steel Sheet and Plate needs!
Marzouk Steel’s Alloy Steel Grade 91 coils find extensive applications in power plants, refineries, petrochemical facilities, and industrial boilers. They are perfect for creating high-temperature components like pipes, tubes, headers, pressure vessels, and heat exchangers. These coils are built to perform reliably under intense pressure and temperature, ensuring a long service life and minimizing maintenance needs. Additionally, they are essential in heavy engineering and fabrication sectors that demand high-strength, creep-resistant materials. With Marzouk Steel’s Grade 91 coils, you can count on durability, safety, and efficiency for critical high-temperature applications.
Marzouk Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Tunis, Tunisia.
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