S690QL Quenched and Tempered Steel Plate- EN 10025

S690QL is a high strength quenched and tempered steel grade that complies to steel specification EN 10025. The designation S690QL refers to a minimum yield strength of 690 MPa.

The combination of good availability and pricing and high strength combined with ease of fabrication has made S690QL high-strength structural steel a popular grade for both mobile applications such as cranes and lifting equipment and fixed steel structures. The high strength nature of this steel means that structures can be designed lighter and for mobile application this means increase in payload and operational efficiency.

Ultra-High Strength: With a yield strength ≥690MPa and a tensile strength of up to 940MPa, it allows the use of thinner plates to achieve lightweight design while maintaining or enhancing structural strength.

Excellent Low-Temperature Toughness: Maintains good impact toughness at -40℃ or even lower temperatures, ensuring structural reliability in cold regions or low-temperature environments.

Good Weldability and Fabrication Performance: Easy to cut, bend, and weld, with high weld strength, meeting the requirements for complex structural connections.

Strong Fatigue Resistance: Exhibits a low crack propagation rate under dynamic loads, extending equipment service life.

Corrosion Resistance: Corrosion resistance can be further improved through surface treatment technologies (such as hot-dip galvanizing, anti-corrosion paint spraying), making it suitable for harsh environments.

Due to its performance advantages, S690QL fine grain structural steel plates are widely used in the following fields:

Engineering Machinery: Crane booms, excavator buckets, concrete pump booms, drilling rigs, electric shovels, mining trucks, etc.

Mining Equipment: Crusher liners, mining truck frames, screens, etc.

Bridge Engineering: Beams, columns, and support structures of large highway bridges, expressway bridges, and railway bridges.

Construction Field: Structural supports and load-bearing components of high-rise buildings, large stadiums, and exhibition centers.

Shipbuilding: Key parts such as decks and hulls, improving the strength and durability of ships.

Marine Engineering: Offshore wind turbine towers, drilling platform joints, submarine pipelines, etc., withstanding seawater corrosion and wave impact.

Petrochemical and Power Industries: Equipment such as pressure vessels, pipelines, and storage tanks, adapting to high temperature, high pressure, and corrosive media.

Other Fields: Rail transit equipment, nuclear equipment, military equipment, wind turbine towers and bases, etc.

Request A Quote

If you want to learn more about GNEE's products, you can send an email to info@gneesteels.com. We are more than happy to assist you.