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Grain Oriented Electrical Steel Sheet And Manufacturing Method Therefor

Abstract: The present invention relates to a grain-oriented electrical steel sheet and a manufacturing method therefor. The grain-oriented electrical steel sheet according to one embodiment of the present invention may comprise, in wt%, 2.0 to 6.0% of Si, 0.005 to 0.04% of acid-soluble Al, 0.01 to 0.2% of Mn, at most 0.01% of N, 0.0005 to 0.045% of P, at most 0.010% of S, 0.01 to 0.05% of Sb, at most 0.005% of C, 0.03 to 0.08% of Sn, 0.01 to 0.2% of Cr, 0.031 to 0.25% of Cu, 0.01 to 0.05% of Mo, and the remainder in Fe and other unavoidable impurities, and satisfy formula 1. 0.03 < [Sn] < ¦v[Cu] + [Sb] - 0.32 ¦ (In formula 1, [Sn], [Cu], and [Sb] represent the wt% of Sn, Cu, and Sb, respectively, v represents a square root, and ¦ ¦ represents an absolute value).

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Notices, Deadlines & Correspondence

Patent Information

Application #
Filing Date
13 June 2024
Publication Number
51/2024
Publication Type
INA
Invention Field
METALLURGY
Status
Email
Parent Application

Applicants

POSCO CO., LTD
(Goedong-dong) 6261 Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859

Inventors

1. SONG, DaeHyun
c/o POSCO, (Goedong-dong) 6261, Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859
2. LEE, Sangwoo
c/o POSCO, (Goedong-dong) 6261, Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859
3. PARK, Junesoo
c/o POSCO, (Goedong-dong) 6261, Donghaean-ro, Nam-gu, Pohang-si, Gyeongsangbuk-do 37859

Specification

Documents

Application Documents

# Name Date
1 202417045711-TRANSLATIOIN OF PRIOIRTY DOCUMENTS ETC. [13-06-2024(online)].pdf 2024-06-13
2 202417045711-STATEMENT OF UNDERTAKING (FORM 3) [13-06-2024(online)].pdf 2024-06-13
3 202417045711-REQUEST FOR EXAMINATION (FORM-18) [13-06-2024(online)].pdf 2024-06-13
4 202417045711-PROOF OF RIGHT [13-06-2024(online)].pdf 2024-06-13
5 202417045711-PRIORITY DOCUMENTS [13-06-2024(online)].pdf 2024-06-13
6 202417045711-POWER OF AUTHORITY [13-06-2024(online)].pdf 2024-06-13
7 202417045711-FORM 18 [13-06-2024(online)].pdf 2024-06-13
8 202417045711-FORM 1 [13-06-2024(online)].pdf 2024-06-13
9 202417045711-DECLARATION OF INVENTORSHIP (FORM 5) [13-06-2024(online)].pdf 2024-06-13
10 202417045711-COMPLETE SPECIFICATION [13-06-2024(online)].pdf 2024-06-13
11 202417045711-MARKED COPIES OF AMENDEMENTS [15-06-2024(online)].pdf 2024-06-15
12 202417045711-FORM 13 [15-06-2024(online)].pdf 2024-06-15
13 202417045711-AMMENDED DOCUMENTS [15-06-2024(online)].pdf 2024-06-15
14 202417045711-FORM 3 [19-09-2024(online)].pdf 2024-09-19