NON-GRAIN-ORIENTED ELECTRICAL STEEL STRIP OR SHEET, COMPONENT PRODUCED THEREFROM, AND METHOD FOR PRODUCING A NON-GRAIN-ORIENTED ELECTRICAL STEEL STRIP OR SHEET.

摘要

The invention relates to a non-grain-oriented electrical steel strip or sheet made of a steel that, in addition to iron and unavoidable impurities, contains (in wt%) Si: 1.0-4.5%, Al: up to 2.0%, Mn: up to 1.0%, C: up to 0.01%, N: up to 0.01%, S: up to 0.012%, Ti: 0.1-0.5%, and P: 0.1-0.3%, wherein the following applies to the ratio %Ti/%P of the Ti content %Ti to the P content %P: 1.0 ≤ %Ti/%P ≤ 2.0. A non-grain-oriented electrical steel strip or sheet according to the invention and components for electrotechnical applications produced from such a sheet or strip are characterized by increased strength and at the same time good magnetic properties. The non-grain-oriented sheet or strip according to the invention can be produced by cold rolling a hot-rolled strip having the aforementioned composition to form a cold-rolled strip and subjecting said cold-rolled strip to a final annealing. The invention relates to different variants of said final annealing for the special manifestation of certain properties of the non-grain-oriented strip or sheet.