IP Library Patent Application 13393881
Patent Application
App. No. 13/393,881

NON-ORIENTED ELECTRICAL STEEL SHEET

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Quick Facts
Patent No.
US None
App. No.
13/393,881
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.

Claims (17)

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.

Assignments (2)
MERGER Recorded Mar 12, 2013
From: NIPPON STEEL CORPORATION
To: NIPPON STEEL & SUMITOMO METAL CORPORATION
Reel/Frame 029972/0326 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 2, 2012
From: KUBOTA, TAKESHI
To: NIPPON STEEL CORPORATION
Reel/Frame 027795/0755 →