METHOD FOR MANUFACTURING QUENCHED AND TEMPERED STEEL WITH SUPERIOR TENSILE STRENGTH OF AROUND 600MPa AND IMPROVED TOUGHNESS IN WELDED PART

PURPOSE: Provided is a method for manufacturing quenched and tempered steel with superior tensile strength of around 600MPa and improved toughness in welded part. CONSTITUTION: The quenched and tempered steel is manufactured by (i) hot rolling of a steel slab comprising C 0.06-0.12wt.%, Si 0.1-0.5wt...

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Bibliographische Detailangaben
Hauptverfasser:	JANG, UNG SEONG, LEE, MOK YEONG
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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