EP 4265771 A4 20240626 - HIGH STRENGTH STEEL SHEET HAVING EXCELLENT WORKABILITY AND METHOD FOR MANUFACTURING SAME
Title (en)
HIGH STRENGTH STEEL SHEET HAVING EXCELLENT WORKABILITY AND METHOD FOR MANUFACTURING SAME
Title (de)
HOCHFESTES STAHLBLECH MIT HERVORRAGENDER BEARBEITBARKEIT UND VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
TÔLE D'ACIER À HAUTE RÉSISTANCE AYANT UNE EXCELLENTE APTITUDE AU FAÇONNAGE ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- KR 20200177516 A 20201217
- KR 2021017992 W 20211201
Abstract (en)
[origin: EP4265771A1] The present invention relates to a steel sheet which can be used for automobile parts and the like, and relates to a steel sheet and a method for manufacturing same, the steel sheet having an excellent balance between strength and ductility, an excellent balance between strength and hole expansion properties, and an excellent yield ratio evaluation score.
IPC 8 full level
C22C 38/04 (2006.01); C21D 1/20 (2006.01); C21D 1/25 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01)
CPC (source: EP KR US)
C21D 1/20 (2013.01 - EP); C21D 1/25 (2013.01 - EP); C21D 8/0205 (2013.01 - EP); C21D 8/0226 (2013.01 - EP KR US); C21D 8/0236 (2013.01 - EP KR US); C21D 8/0273 (2013.01 - EP KR US); C21D 9/46 (2013.01 - EP KR US); C22C 38/001 (2013.01 - KR US); C22C 38/002 (2013.01 - EP US); C22C 38/005 (2013.01 - EP); C22C 38/008 (2013.01 - EP); C22C 38/02 (2013.01 - EP KR US); C22C 38/04 (2013.01 - EP KR US); C22C 38/06 (2013.01 - EP KR US); C23G 1/00 (2013.01 - US); C21D 9/48 (2013.01 - EP); C21D 2211/001 (2013.01 - EP US); C21D 2211/002 (2013.01 - EP US); C21D 2211/008 (2013.01 - EP US); C22C 38/08 (2013.01 - EP); C22C 38/10 (2013.01 - EP); C22C 38/12 (2013.01 - EP); C22C 38/14 (2013.01 - EP); C22C 38/16 (2013.01 - EP); C22C 38/32 (2013.01 - EP); C22C 38/38 (2013.01 - EP); C22C 38/60 (2013.01 - EP)
Citation (search report)
- [Y] EP 3101147 B1 20180815 - JFE STEEL CORP [JP]
- [Y] EP 3611285 A1 20200219 - JFE STEEL CORP [JP]
- See references of WO 2022131625A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 4265771 A1 20231025; EP 4265771 A4 20240626; CN 116568844 A 20230808; JP 2024500723 A 20240110; KR 102485009 B1 20230104; KR 20220087124 A 20220624; US 2024011117 A1 20240111; WO 2022131625 A1 20220623
DOCDB simple family (application)
EP 21906930 A 20211201; CN 202180085081 A 20211201; JP 2023536473 A 20211201; KR 20200177516 A 20201217; KR 2021017992 W 20211201; US 202118267082 A 20211201