JFE-HITEN 590S/690S are economical and have good weldability with high toughness because they are produced by controlled rolling or TMCP with optimum chemical composition. They are, suitable for civil engineering and industrial machinery, even in cold regions. JFE-HITEN 780S/980S quenched and tempered steel plates come in thicknesses of up to 50mm with alloying elements reduced to minimum amounts to provide good weldability and high economy. They suite for uses in civil engineering and industrial machinery. JFE-HITEN 780LE is manufactured by using JFE's leading technologies including controlled rolling and minimum micro-alloying, consequently, providing good weldability and high toughness over in low temperature (-40 C) regions.