EP 4079901 A4 20230517 - HIGH-STRENGTH STEEL SHEET HAVING SUPERIOR WORKABILITY, AND MANUFACTURING METHOD THEREFOR
Title (en)
HIGH-STRENGTH STEEL SHEET HAVING SUPERIOR WORKABILITY, AND MANUFACTURING METHOD THEREFOR
Title (de)
HOCHFESTES STAHLBLECH MIT HOHER BEARBEITBARKEIT UND VERFAHREN ZU SEINER HERSTELLUNG
Title (fr)
TÔLE D'ACIER À HAUTE RÉSISTANCE AYANT UNE EXCELLENTE APTITUDE À L'USINAGE, ET PROCÉDÉ DE FABRICATION ASSOCIÉ
Publication
Application
Priority
- KR 20190169606 A 20191218
- KR 2020016653 W 20201124
Abstract (en)
[origin: EP4079901A1] The present invention relates to a steel sheet which can be used for automobile parts and the like, and relates to a steel sheet having a superior strength-ductility and strength-hole expansibility balance and superior bending workability, and a method for manufacturing same.
IPC 8 full level
C22C 38/00 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C21D 9/68 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/10 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/16 (2006.01); C22C 38/22 (2006.01); C22C 38/34 (2006.01); C22C 38/38 (2006.01); C22C 38/60 (2006.01)
CPC (source: EP KR US)
C21D 6/005 (2013.01 - EP); C21D 6/008 (2013.01 - EP); C21D 8/0226 (2013.01 - EP KR US); C21D 8/0236 (2013.01 - EP KR US); C21D 8/0263 (2013.01 - EP KR US); C21D 8/0273 (2013.01 - EP KR US); C21D 9/46 (2013.01 - US); C21D 9/68 (2013.01 - KR); 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); 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 38/22 (2013.01 - EP); C22C 38/34 (2013.01 - EP); C22C 38/38 (2013.01 - EP); C22C 38/60 (2013.01 - EP); C21D 2211/001 (2013.01 - EP KR US); C21D 2211/002 (2013.01 - EP US); C21D 2211/005 (2013.01 - EP US); C21D 2211/008 (2013.01 - EP KR US)
Citation (search report)
- [I] JP 2017053001 A 20170316 - NIPPON STEEL & SUMITOMO METAL CORP
- [A] EP 3438309 A1 20190206 - KOBE STEEL LTD [JP]
- [A] WO 2018221307 A1 20181206 - KOBE STEEL LTD [JP] & EP 3636788 A1 20200415 - KOBE STEEL LTD [JP]
- See also references of WO 2021125596A1
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 4079901 A1 20221026; EP 4079901 A4 20230517; CN 114787408 A 20220722; JP 2023507953 A 20230228; JP 2024109824 A 20240814; JP 7554827 B2 20240920; KR 102353611 B1 20220120; KR 20210078006 A 20210628; US 2023052872 A1 20230216; WO 2021125596 A1 20210624
DOCDB simple family (application)
EP 20902283 A 20201124; CN 202080085847 A 20201124; JP 2022536956 A 20201124; JP 2024084081 A 20240523; KR 20190169606 A 20191218; KR 2020016653 W 20201124; US 202017785870 A 20201124