Abstract: There is provided a non-oriented electrical steel sheet for a stator core of a claw pole motor, the non-oriented electrical steel sheet is a strip-shaped steel sheet in which magnetic flux density in a direction forming 45° with respect to a rolling direction is higher than magnetic flux density in the rolling direction and magnetic flux density in a transverse direction that is a direction forming 90° with respect to the rolling direction.

Abstract: The present invention provides a non-oriented electrical steel sheet having ultra-high magnetic flux density and low core loss, characterized by: comprising a steel containing, in terms of wt %, Si: 0.4% or less, Ni: 2.0% to 6.0%, and Mn: 0.5% or less, with the balance consisting of Fe and unavoidable impurities; and having B25, the magnetic flux density under the magnetic field strength of 2500 A/m, of 1.70T or higher and B50, the magnetic flux density under the magnetic field strength of 5000 A/m, of 1.80T or higher.

Abstract: The present invention provides a non-oriented electrical steel sheet having crystal grains of small diameter and excellent workability before stress relief annealing and having crystal grains of largely grown diameter and excellent iron loss property after stress relief annealing and a method for producing the same, and relates to a low iron loss non-oriented electrical steel sheet excellent in workability, containing, in weight %, 0.010% or less of C, 0.1 to 1.5% of Mn, 0.1 to 4% of Si, 0.1 to 4% of Al, wherein the latter three elements satisfy the formula Si+Mn+Al≦5.0%, and 0.0005 to 0.0200% of Mg, or further containing 0.005% or more of Ca, wherein the total amount of Mg and Ca is 0.0200% or less, or further containing 0.005% or more of REM, wherein the total amount of Mg and REM is 0.0200% or less, or further containing 0.005% or more of Ca and REM, wherein the total amount of Mg, Ca and REM is 0.0200% or less, and containing the remainder consisting of Fe and unavoidable impurities.

Abstract: The present invention provides a non-oriented electrical steel sheet having ultra-high magnetic flux density and low core loss, characterized by: comprising a steel containing, in terms of wt %,

Abstract: A non-oriented electrical steel sheet excellent in permeability whose steel contains, in percentage by weight, 0.1%≦Si≦1.0%, 0.1%≦Mn≦0.8%, 0.1%≦Al≦1.0% and the balance of Fe and unavoidable impurities, and which has an ay transformation, an electrical resistivity of not less than 10×10−8 &OHgr;m and not greater than 32×10−8 &OHgr;m and a permeability &mgr;{fraction (15/60)} of not less than 1500 (Gauss/Oe); and a method of producing the same.

Abstract: The present invention provides a non-oriented electrical steel sheet having crystal grains of small diameter and excellent workability before stress relief annealing and having crystal grains of largely grown diameter and excellent iron loss property after stress relief annealing and a method for producing the same, and relates to a low iron loss non-oriented electrical steel sheet excellent in workability, containing, in weight %, 0.010% or less of C, 0.1 to 1.5% of Mn, 0.1 to 4% of Si, 0.1 to 4% of Al, wherein the latter three elements satisfy the formula Si+Mn+Al≦5.0%, and 0.0005 to 0.0200% of Mg, or further containing 0.005% or more of Ca, wherein the total amount of Mg and Ca is 0.0200% or less, or further containing 0.005% or more of REM, wherein the total amount of Mg and REM is 0.0200% or less, or further containing 0.005% or more of Ca and REM, wherein the total amount of Mg, Ca and REM is 0.0200% or less, and containing the remainder consisting of Fe and unavoidable impurities.

Abstract: A process for producing a non-oriented electrical steel sheet, comprising the steps of: hot rolling a non-oriented electrical steel sheet of a steel comprising at least one element selected from the group consisting of Si, Mn, and Al in respective amounts, in terms of by weight, satisfying the requirements 0.10%.ltoreq.Si.ltoreq.2.50%, 0.10%.ltoreq.Al.ltoreq.1.00%, 0.10%.ltoreq.Mn.ltoreq.2.00%, and the total amount of Si and Al being (Si+2Al).ltoreq.2.50%, with the balance consisting of Fe and unavoidable impurities, to prepare a hot rolled sheet; either subjecting the hot rolled sheet to single pass rolling to a final sheet thickness followed by finish annealing, or cold rolling the hot rolled sheet and then finish annealing the cold rolled sheet followed by skin pass rolling with a reduction ratio of 2 to 20% to a final sheet thickness, wherein the finishing in the step of finish hot rolling is performed in a temperature region of (Ar.sub.3 +50).degree. C.