STEEL SHEET HAVING ENHANCED DUCTILITY FOR A MOLDING MEMBER, MOLDING MEMBER, AND METHOD FOR MANUFACTURING SAME

摘要

The present invention relates to a steel sheet having enhanced ductility for a molding member, to a molding member, and to a method for manufacturing same, and more particularly, to a steel sheet for a molding member, which has ultra-high strength and ductility so as to be usable for automotive structural members or reinforcement members, to a molding member, and to a method for manufacturing same. The present invention relates to a steel sheet having enhanced ductility for a molding member, to a molding member, and to a method for manufacturing same, wherein the steel sheet comprises, in wt %: 0.1-1.0% of C; 0.4-3.0% of Si+Al; 0.1-5.0% of Mn; 0.0001-0.1% of P; 0.0001-0.03% of S; 0.03% or less (but not 0) of N; the remainder being Fe and unavoidable impurities. According to one aspect of the present invention, a molding member which has ultra-high strength and ductility, and which can be used for automotive structural members or reinforcement members, can be provided, and further, the field in which said molding member can be used can be expanded to heat-treatable collision members.