590N/MM2 CLASS STEEL PLATE FOR WELDED STRUCTURE, EXCELLENT IN TOUGHNESS IN HAZ AT LARGE HEAT INPUT WELDING AND HAVING <=80% YIELD RATIO, AND ITS PRODUCTION

PROBLEM TO BE SOLVED: To secure toughness in an HAZ(heat-affected zone) by subjecting a steel slab of specific composition to hot rolling and to accelerated cooling under respectively specified conditions. SOLUTION: A steel slab, having a composition which consists of, by mass, 0.10-0.16% C,

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Bibliographische Detailangaben
Hauptverfasser:	IZUMI MANABU, ABE KENGO, HAMANAKA TAKAMICHI, HOSOYA TAKASHI
Format:	Patent
Sprache:	eng
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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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To secure toughness in an HAZ(heat-affected zone) by subjecting a steel slab of specific composition to hot rolling and to accelerated cooling under respectively specified conditions. SOLUTION: A steel slab, having a composition which consists of, by mass, 0.10-0.16% C,