NON-ORIENTED ELECTROMAGNETIC STEEL SHEET AND METHOD FOR MANUFACTURING SAME

摘要

According to the present invention, a non-oriented electromagnetic steel sheet having superior magnetic properties and mechanical properties and also superior steel sheet quality can be obtained at low cost by forming a component composition that contains, in percent by mass, 5.0% or less Si, 2.0% or less Mn, 2.0% or less Al, and 0.05% or less P in a range that satisfies formula (1) and further contains 0.008 - 0.040% C, 0.003% or less N, and 0.04% or less Ti in a range that satisfies formula (2), with the remainder being formed from Fe and inevitable impurities. 300 = 85[Si%] + 16[Mn%] + 40[Al%] + 490[P%] = 430 ... (1) 0.008 = Ti* < 1.2[C%] ... (2) Here, Ti* = Ti - 3.4[N%]