Non Oriented Electrical Steel Sheet And Manufacturing Method Therefor

Abstract: A non-oriented electrical steel sheet according to one embodiment of the present invention comprises, by wt%, 1.5-4.5% of Si, 0.1-2.0% of Al, 0.1-2.0% of Mn, 0.002-0.03% of at least one from among Mo, V and Nb, and the balance of Fe and inevitable impurities, and, in order of grain size, the ratio of the average grain diameter of coarse grains of 0-25% to the average grain diameter of fine grains of 75-100% is 6.5 or less.

Patent Information

Application #

Filing Date

02 July 2026

Publication Number

28/2026

Publication Type

INA

Invention Field

METALLURGY

Status

Email

Parent Application

Applicants

POSCO CO., LTD

6261, Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859

Inventors

1. KIM, Daehwan

6261, Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859

2. KIM, Yun-Su

6261, Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859

Specification

Documents

Application Documents

#	Name	Date
1	202647081926-TRANSLATION OF PRIORITY DOCUMENTS ETC. [02-07-2026(online)].pdf	2026-07-02
2	202647081926-STATEMENT OF UNDERTAKING (FORM 3) [02-07-2026(online)].pdf	2026-07-02
3	202647081926-PROOF OF RIGHT [02-07-2026(online)].pdf	2026-07-02
4	202647081926-PRIORITY DOCUMENTS [02-07-2026(online)].pdf	2026-07-02
5	202647081926-POWER OF AUTHORITY [02-07-2026(online)].pdf	2026-07-02
6	202647081926-FORM 18 [02-07-2026(online)].pdf	2026-07-02
7	202647081926-FORM 1 [02-07-2026(online)].pdf	2026-07-02
8	202647081926-DRAWINGS [02-07-2026(online)].pdf	2026-07-02
9	202647081926-DECLARATION OF INVENTORSHIP (FORM 5) [02-07-2026(online)].pdf	2026-07-02
10	202647081926-COMPLETE SPECIFICATION [02-07-2026(online)].pdf	2026-07-02
11	202647081926-WIPO_PCT_DOC.pdf	2026-07-03
12	202647081926-PATENT_APPLICATION_PUBLICATION.pdf	2026-07-15