Marzouk Steel stands out as a leading manufacturer and supplier located in Tunis, Tunisia, offering top-notch steel solutions tailored for industrial, structural, and heavy-duty applications. The company has carved a niche in producing Rockstar 450 sheets and plates, which are celebrated for their remarkable strength, toughness, and reliability even in the toughest conditions. With state-of-the-art production facilities, rigorous quality control measures, and a team of skilled experts, Marzouk Steel guarantees consistent material performance and precise dimensional accuracy. Catering to sectors like construction, automotive, heavy machinery, and industry, the company provides steel products that adhere to international standards, ensuring superior load-bearing capacity, durability, and long-lasting performance for projects that demand high-strength, resilient, and versatile steel materials.
Rockstar 450 sheets and plates are crafted from high-strength low-alloy steel, featuring a meticulously controlled chemical composition. This steel is engineered with optimized levels of carbon, manganese, and micro-alloying elements to boost yield strength, tensile strength, toughness, and weldability. On a mechanical level, Rockstar 450 boasts a minimum yield strength of 450 MPa, impressive tensile strength, excellent impact resistance, and good elongation. These characteristics guarantee dependable performance under heavy loads and challenging industrial conditions while preserving structural integrity, durability, and safety.
Thickness :Â 6mm to 100mm
Width :Â 1,450mm to 2,450mm
Length :Â 6,000mm to 12,000mm
Production :Â Hot-Rolled (HR) / Cold-Rolled (CR)
Heat Treatment :Â N, Q+T
Surface Paint :Â EP, PE, HDP, SMP, PVDF
| Plate Thickness | mm | 6.0 – 20.0 | 21.0 – 32.0 | 32.1 – 50.0 | 50.1 – 75.0 |
|---|---|---|---|---|---|
| C | Max % | 0.16 | 0.18 | 0.22 | 0.22 |
| Mn | Max % | 1.60 | 1.60 | 1.60 | 1.60 |
| P | Max % | 0.025 | 0.025 | 0.025 | 0.025 |
| S | Max % | 0.010 | 0.010 | 0.010 | 0.010 |
| Si | Max % | 0.70 | 0.70 | 0.70 | 0.70 |
| Cr | Max % | 0.50 | 1.00 | 1.40 | 1.40 |
| Ni | Max % | 0.25 | 0.25 | 0.50 | 0.50 |
| Mo | Max % | 0.25 | 0.25 | 0.60 | 0.60 |
| B | Max % | 0.0040 | 0.0040 | 0.0040 | 0.0040 |
| CE | Max % | 0.45 | 0.48 | 0.57 | 0.65 |
| PCM | Max % | 0.28 | 0.29 | 0.33 | 0.40 |
| 360-430 BHN (On a milled surface 0.5-2 mm below the plate surface) | |
|---|---|
| Hardness | Typical values for 20 mm |
| Yield Strength (MPa) | 1000 |
| Tensile Strength (MPa) | 1250 |
| % Elongation (L0=50 mm) | 12 |
| Impact at -30°C (In Joules) | 40 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rockstar 450 sheets and plates find their place in various applications that demand high strength, toughness, and structural reliability. Common uses include structural components in cranes, construction machinery, heavy equipment, automotive frames, and industrial machinery. They are also utilized in fabricated structures, material handling systems, and critical engineering projects where durability, weldability, and load-bearing capacity are crucial. Thanks to their outstanding mechanical properties, Rockstar 450 plates ensure a long service life, improved structural performance, and reliable operation in demanding industrial environments.
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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