Dang Steel, based in Da Nang, Vietnam, has built a solid reputation as a manufacturer and supplier of high-strength structural steel. They specialize in premium S690 QL Sheets and Plates, perfect for demanding engineering projects. With its remarkable strength-to-weight ratio, S690 QL is the go-to choice for heavy-load structures where durability and performance are key. Dang Steel provides precisely cut, certified, and quality-tested plates that cater to various industries, including construction, transportation, and heavy machinery. Thanks to competitive pricing, advanced fabrication skills, and dependable logistics, they deliver customized steel solutions across Vietnam and Southeast Asia for high-performance structural needs.
S690 QL is a high-strength, quenched and tempered structural steel known for its impressive toughness and weldability. It features a composition of carbon (max 0.20%), manganese (up to 1.70%), silicon (max 0.80%), along with alloying elements like chromium, nickel, and molybdenum that boost its strength and toughness. With a minimum yield strength of 690 MPa and tensile strength ranging from 770 to 940 MPa, S690 QL strikes a balance between high strength and good formability, making it suitable for welding when done correctly. These characteristics make it an ideal choice for lightweight, high-load structural components that demand superior mechanical performance.
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 way into various industries that require high-strength, lightweight structural components. They are commonly used in applications like crane booms, bridge structures, lifting equipment, truck chassis, offshore platforms, and heavy machinery frames. In civil engineering, S690 QL is utilized for load-bearing frameworks and support structures where minimizing weight is essential without sacrificing strength. Its high yield strength allows for the creation of thinner, lighter components that still maintain structural integrity under significant stress. Plus, S690 QL’s excellent weldability and toughness make it a reliable choice for demanding applications.
Dang 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 Da Nang, Vietnam.
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