Investigation of microstructure and properties of strip-cast 4.5 wt% Si non-oriented electrical steel by different rolling processes

•A Fe-4.5 wt% Si steel casting strip with equiaxed grains was fabricated by twin-roll strip caster.•Slight reduction of second cold rolling promoted the formation of strong {1 0 0} 〈0 0 1〉 and near Goss orientation texture.•Steel sheet experienced one-stage cold rolling exhibits the highest tensile strength.•Excellent performance of mechanic and magnetic properties was fabricated by the two-stage medium reduction cold rolling.