Warmgewalztes stahlblech für nichtorientiertes elektrostahlblech und verfahren zur herstellung davon

Abstract

A hot rolled steel sheet is for a non oriented electrical steel sheet, wherein an amount of solid-soluted Ti is 0.0005% or less, Ti carbides with an equivalent circle diameter of 10 to 50 nm exist in a grain and at a grain boundary of a ferrite grain, 10 to 100 number% of the Ti carbides which exist in the grain are compositely precipitated with a Mn sulfide, and a number density of the Ti carbides which exist at the grain boundary is 0.1 pieces / µm or less.