Due to the steels high strength, structures can be designed lighter, payloads increased, and energy used more efficiently. In Europe the structural steel specification EN 10025 includes a range of high strength quenched and tempered steel grades and the designation S690QL gives the parameters for steel with a minimum yield strength of 690 MPa.(plate) High Tensile Plates - High Tensile Plates E350,E450,S690 hot roll steel grades price s690ql(steel) HINDUSTAN STEEL CORPORATION MUMBAI stock Alloy Quenched Tempered Steel EN 10025 S690QL Plate India Search for Alloy Quenched Tempered Steel EN 10025 S690QL Plate : Find Quick Results now! Great Offers on Alloy Quenched Tempered Steel EN 10025 S690QL Plate. Best Prices