Marzouk Steel stands out as a top manufacturer and supplier located in Tunis, Tunisia, with a focus on providing high-strength steel solutions tailored for demanding structural and engineering needs. They offer S690 QL sheets and plates, which are celebrated for their remarkable strength, toughness, and reliability. With cutting-edge processing facilities, rigorous quality control measures, and a team of seasoned experts, Marzouk Steel guarantees consistent material properties and precise dimensions. Catering to the construction, heavy engineering, and industrial sectors, the company is dedicated to delivering durable, high-performance steel products that adhere to international standards, ensuring long-lasting structural integrity for essential projects and infrastructure.
The S690 QL sheets and plates are crafted from quenched and tempered high-strength low-alloy steel, featuring a meticulously controlled chemical composition. This steel is engineered with optimal levels of carbon, manganese, and micro-alloying elements to boost tensile strength, toughness, and weldability. On the mechanical side, S690 QL boasts a minimum yield strength of 690 MPa, along with high tensile strength, excellent impact resistance, and good elongation. These characteristics make it perfect for heavy-duty structural applications that demand superior load-bearing capacity, durability, and resilience against dynamic stresses.
Thickness : 5MM & Above
Width : 1500 – 3500mm
Length : 3000 – 18000mm
Grade : S690QL EN10137-2 EN10025-6:2004, A709-100, DILLIMAX 690, NAXTRA 70, WELDOX 700, E690, JFE HITEN 780LE, ALFORM 700
| Grade | C | Si | Mn | P | S | N | B | Cr | Cu | Mo | Nb* | Ni | Ti* | V* | Zr* |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S690 QL | 0.20 | 0.80 | 1.70 | 0.025 | 0.015 | 0.015 | 0.0050 | 1.50 | 0.50 | 0.70 | 0.06 | 2.0 | 0.05 | 0.12 | 0.15 |
| Designation | Mechanical Properties (ambient temperature) | |||||||
|---|---|---|---|---|---|---|---|---|
| Steel Name | Steel Number | Min. Yield Strength Reh MPa | Tensile Strength Rm MPa | Min. % elongation after fracture | ||||
| Nominal thickness (mm) | Nominal thickness (mm) | |||||||
| ≥3 ≤50 | ≥50 ≤100 | ≥100 ≤150 | ≥3 ≤50 | ≥50 ≤100 | ≥100 ≤150 | |||
| S690 QL | 1.8931 | 690 | 650 | 630 | 770/940 | 760/930 | 710/900 | 14 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
S690 QL sheets and plates find their place in various applications where high strength and reliability are paramount. Common uses include bridges, cranes, heavy machinery, offshore structures, and large structural frameworks. They are also utilized in construction equipment, industrial platforms, and transportation infrastructure, where optimizing weight and strength is crucial. Thanks to their outstanding weldability and toughness, S690 QL plates facilitate the efficient fabrication of complex designs, ensuring safety, stability, and a long service life in challenging structural and engineering projects.
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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