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Title:
ULTRAHIGH-STRENGTH HOT-ROLLED STEEL SHEET HAVING EXCELLENT FORMABILITY AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/096299
Kind Code:
A1
Abstract:
The present invention relates to a hot-rolled steel sheet that can be suitably applied to an automobile chassis structure member or the like and, more specifically, to an ultrahigh-strength hot-rolled steel sheet having excellent formability and uniform material inside the steel sheet, and a manufacturing method therefor.

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Inventors:
SONG TAE-JIN (KR)
RYU JOO-HYUN (KR)
LEE JE-WOONG (KR)
Application Number:
PCT/KR2022/018467
Publication Date:
June 01, 2023
Filing Date:
November 22, 2022
Export Citation:
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Assignee:
POSCO CO LTD (KR)
International Classes:
C22C38/38; C21D8/02; C22C38/00; C22C38/22; C22C38/28; C22C38/32; C22C38/34; C22C38/60; C23C2/06; C23G1/02
Foreign References:
KR102109272B12020-05-11
JP2009007659A2009-01-15
US20180265939A12018-09-20
KR20190109459A2019-09-25
KR101518600B12015-05-07
Attorney, Agent or Firm:
C&S PATENT AND LAW OFFICE (KR)
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