Non-directional electromagnetic steel sheet, laminated iron core, manufacturing method of laminated iron core, and manufacturing method of non-directional electromagnetic steel sheet.

Abstract

A non-directional electromagnetic steel sheet is provided that combines excellent fatigue strength and elongation in the rolling direction, and can also achieve low iron loss through additional treatment. The non-directional electromagnetic steel sheet has: a specified composition; a microstructure in which the area fraction of recrystallized grains is 95% or more, and the average grain size of the recrystallized grains is 10 μm to 40 μm; and a texture at a position of 1 / 4 of the sheet thickness, wherein the {111}<112> azimuth strength is 2.0 to 20.0, the {411}<113> azimuth strength is 1.0 to 20.0, and the ratio I1 of the {411}<113> azimuth strength to the {111}<112> azimuth strength is 0.40 to 2.00.

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