NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME

WIPO Patent Application WO/2024/019490

A1

The present invention provides a non-oriented electrical steel sheet comprising: 2.8-3.8 wt% of silicon (Si); 0.2-0.5 wt% of manganese (Mn); 0.5-1.5 wt% of aluminum (Al); 0 to 0.003 wt% (exclusive of 0) of carbon (C); 0 to 0.015 wt% (exclusive of 0) of phosphorus (P); 0 to 0.003 wt% (exclusive of 0) of sulfur (S); 0 to 0.003 wt% (exclusive of 0) of nitrogen (N); and 0 to 0.003 wt% (exclusive of 0) of titanium (Ti), with the balance being iron (Fe) and other inevitable impurities, wherein the volume fraction of secondary phase particles having an average diameter of at least 1.0 µm among secondary phase particles constituting the microstructure is at least 60%, and the non-oriented electrical steel sheet has an iron loss (W10/400) of at most 12.0 W/kg.

WO/2019/111028	COLD ROLLED AND ANNEALED STEAL SHEET AND METHOD OF MANUFACTURING THE SAME
WO/2020/103927	HIGH-YIELD-RATIO COLD-ROLLED DUAL-PHASE STEEL AND MANUFACTURING METHOD THEREFOR
WO/2020/050573	ULTRA HIGH STRENGTH AND HIGH DUCTILITY STEEL SHEET HAVING EXCELLENT YIELD RATIO AND MANUFACTURING METHOD FOR SAME

AHN YONG KEUN (KR)
KANG CHUN KU (KR)
SHIN KYEONG SIK (KR)
PARK GEUN HO (KR)

PCT/KR2023/010317

January 25, 2024

July 18, 2023

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HYUNDAI STEEL CO (KR)

C22C38/02; B21C47/02; C21D8/12; C21D9/46; C22C38/00; C22C38/04; C22C38/06; C22C38/14

KR20210080657A	2021-07-01
KR20170075592A	2017-07-03
JP5321764B2	2013-10-23
KR20130076547A	2013-07-08
KR20220089734A	2022-06-29
JP2018178197A	2018-11-15

LEE, In Haeng et al. (KR)

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