METHOD FOR MANUFACTURING COLD ROLLED STEEL HAVING EXCELLENT DRAWABILITY

1308167 Steel sheet NIPPON KOKAN KK 17 Dec 1970 [27 Dec 1969] 59855/70 Headings C7A and C7D Steel having less than 0À01%C and less than 0À5%Mn, together with good drawability, are obtained by subjecting molten steel to vacuum treatment while blowing through it an inert or decarburising gas, possibly...

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Bibliographische Detailangaben
Hauptverfasser:	HASHIMOTO Y,JA, OHKUBO M,JA, GONDA H,JA, KUBOTERA H,JA, MATSUDO K,JA, SHIMOMURA T,JA, TANAKA N,JA
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY 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 PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
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Zusammenfassung:	1308167 Steel sheet NIPPON KOKAN KK 17 Dec 1970 [27 Dec 1969] 59855/70 Headings C7A and C7D Steel having less than 0À01%C and less than 0À5%Mn, together with good drawability, are obtained by subjecting molten steel to vacuum treatment while blowing through it an inert or decarburising gas, possibly from a porous brick in the base of the ladle. After casting, possibly continuously, the steel is hot rolled, cold rolled and annealed at over 650 C. The steel may contain less than 0À4%Mn in conjunction with soluble Al exceeding 0À02%, in which case it is coiled at over 630 C following hot rolling.