MAKING METHOD OF LOW CARBON COLD ROLLING STEEL SHEET

A low carbon Al-killed steel including (in wt.) less than 100ppm C, less than 0.15% Mn, less than 0.007% S, 0.03-0.07 sol. Al, less than 70ppm N, 0.035-0.065% Nb and the balance Fe is continuously casted to a slab, hot rolled on condition that the surface temperature of the steel is 890-950 deg.C an...

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Bibliographic Details
Main Authors KANG, HEE-JAE, NOH, KYUNG-JOON
Format Patent
LanguageEnglish
Published 16.10.1996
Edition6
Subjects
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
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Summary:A low carbon Al-killed steel including (in wt.) less than 100ppm C, less than 0.15% Mn, less than 0.007% S, 0.03-0.07 sol. Al, less than 70ppm N, 0.035-0.065% Nb and the balance Fe is continuously casted to a slab, hot rolled on condition that the surface temperature of the steel is 890-950 deg.C and the temperature just after finish rolling is 700-860 deg.C, acid cleaned, cold rolled, and continuously annealed at low temperature of more than 730 deg.C. The obtained steel sheet has good deep drawability.
Bibliography:Application Number: KR19940012622