HIGH STRENGTH COLD ROLLED STEEL SHEET HAVING SUPERIOR LOCAL DUCTILITY AND STABLE BAKING HARDENABILITY OF COATING, PRODUCED BY CONTINUOUS ANNEALING

PURPOSE:To provide superior local ductility and strain ageing characteristic and stable baking hardenability of coating by continuously annealing an Al killed steel sheet of specific composition and specifying solid-solution carbon content and transgranular cementite density, respectively. CONSTITUT...

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Bibliographische Detailangaben
Hauptverfasser:	ISHII YOSHIO, UEDA TOSHIZUMI, TEFUN MAKOTO, SHIODA KOSAKU, KIMURA NORITOSHI
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:	PURPOSE:To provide superior local ductility and strain ageing characteristic and stable baking hardenability of coating by continuously annealing an Al killed steel sheet of specific composition and specifying solid-solution carbon content and transgranular cementite density, respectively. CONSTITUTION:This steel has a chemical composition consisting of, by weight, 0.01-0.04% C, 0.005-0.4% Si, 0.05-0.30% Mn, >0.08-0.13% P, 0.003-0.02% S, 0.015-0.15% Al,