Non-oriented electrical steel sheet

Abstract

A non-oriented electrical steel sheet contains 2.8 mass % or more and 4.0 mass % or less of Si, 0.2 mass % or more and 3.0 mass % or less of Al, and 0.02 mass % or more and 0.2 mass % or less of P. The non-oriented electrical steel sheet contains further contains 0.5 mass % or more in total of at least one kinds selected from a group consisting of 4.0 mass % or less of Ni and 2.0 mass % or less of Mn. A C content is 0.05 mass % or less, a N content is 0.01 mass % or less, an average grain diameter is 15 μm or less, and a <111> axial density is 6 or larger.

1 . A non-oriented electrical steel sheet containing:
 Si: 2.8 mass % or more and 4.0 mass % or less;   Al: 0.2 mass % or more and 3.0 mass % or less; and   P: 0.02 mass % or more and 0.2 mass % or less, and   
       further containing 0.5 mass % or more in total of at least one kinds selected from a group consisting of 4.0 mass % or less of Ni and 2.0 mass % or less of Mn,
 wherein 
 a C content is 0.05 mass % or less, 
 a N content is 0.01 mass % or less, 
 a balance is composed of Fe and inevitable impurity, 
 an average grain diameter is 15 μm or less, and 
 a <111> axial density is 6 or larger. 
 
     
     
         2 . The non-oriented electrical steel sheet according to  claim 1 , wherein
 the C content is 0.003 mass % or more,   the N content is 0.001 mass % or less or more, and   the non-oriented electrical steel sheet further contains Nb, and a value R Nb  is 0.1 or larger and 1 or smaller, the value R Nb  being represented by [Nb]/8([C]+[N]), with [Nb] for a content of Nb in mass %, [C] for a content of C in mass %, and [N] for a content of N in mass %.   
     
     
         3 . The non-oriented electrical steel sheet according to  claim 1 , further containing 0.001 mass % or more and 0.007 mass % or less of B. 
     
     
         4 . The non-oriented electrical steel sheet according to  claim 2 , further containing 0.001 mass % or more and 0.007 mass % or less of B.