Non-oriented electrical steel sheet and method for producing same

Abstract

In a production of a non-oriented electrical steel sheet comprising subjecting a slab containing a particular composition to a hot rolling, a hot-band annealing, a cold rolling to form a cold-rolled sheet and a finish annealing, a rolling reduction of a final finish rolling pass in the hot rolling is not less than 10%, and a coiling temperature is not higher than 620° C., and a soaking temperature in the finish annealing is 600 to 800° C. to achieve such properties that a recrystallization ratio is less than 100% as an area ratio, a strength C is not less than 2.0 and a strength difference C-D is not more than 2.0, where C is a strength at ϕ=0° and φ1=0° and D is a strength at ϕ=20° and φ1=0° in a section of ϕ2=45° of ODF obtained in a central layer of a sheet thickness.

Dependencies are inferred from the claim text.