Patent ID: 6767412
Filing Date: 2004-07-27
Classification: C21D

Abstract:
A method for producing non-grain-oriented hot-rolled magnetic steel sheet comprising:producing a raw material in the form of cast slabs, strip, roughed strip or thin slabs from a steel comprising in weight %: C: 0.0001-0.05%; Si: &lE;1.5%; Al: &lE;0.5%, wherein [% Si]+2[% Al]&lE;1.8; Mn: 0.1-1.2%; balance iron and inevitable impurities; hot rolling said raw material to a hot strip with a thickness &lE;1.5 mm in a finishing roll line at temperatures above the Ar1 temperature; wherein at least the last forming pass of the hot rolling step is carried out in a two phase austenite/ferrite region, and wherein a total deformation eH achieved during the hot rolling step in the two phase austenite/ferrite region is <35%.