EP 3296416 A4 20180321 - ULTRA-HIGH STRENGTH HOT-ROLLED STEEL SHEET HAVING EXCELLENT BENDING WORKABILITY AND METHOD FOR MANUFACTURING SAME
Title (en)
ULTRA-HIGH STRENGTH HOT-ROLLED STEEL SHEET HAVING EXCELLENT BENDING WORKABILITY AND METHOD FOR MANUFACTURING SAME
Title (de)
ULTRAHOCHFESTES HEISSGEWALZTES STAHLBLECH MIT HERVORRAGENDER BIEGBARKEIT SOWIE VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
TÔLE D'ACIER, LAMINÉE À CHAUD, DE RÉSISTANCE ULTRA-ÉLEVÉE, PRÉSENTANT UNE EXCELLENTE APTITUDE AU FAÇONNAGE PAR PLIAGE ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
KR 2015004766 W 20150512
Abstract (en)
[origin: EP3296416A1] The present invention relates to an ultra-high strength hot-rolled steel sheet which is mainly used for components requiring high strength and excellent bending workability, such as a bumper reinforcement and a door impact beam that are reinforcements for the body of a car. The present invention provides: an ultra-high strength hot-rolled steel sheet which has high strength and thus is very effective in forming a lightweight material due to the thin thickness of the material according to the high strength thereof, and at the same time has excellent bending workability so that it is easy to ensure the shape freezing property of a component through roll forming; and a method for manufacturing the same.
IPC 8 full level
C22C 38/02 (2006.01); C21D 1/18 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/04 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C22C 38/32 (2006.01); C22C 38/38 (2006.01); C23C 2/40 (2006.01)
CPC (source: EP US)
C21D 6/002 (2013.01 - US); C21D 6/005 (2013.01 - US); C21D 6/008 (2013.01 - US); C21D 8/0205 (2013.01 - EP US); C21D 8/0226 (2013.01 - EP US); C21D 8/0263 (2013.01 - EP US); C21D 8/0284 (2013.01 - EP US); C21D 9/46 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/12 (2013.01 - EP US); C22C 38/14 (2013.01 - EP US); C22C 38/26 (2013.01 - EP US); C22C 38/28 (2013.01 - EP US); C22C 38/32 (2013.01 - EP US); C22C 38/38 (2013.01 - EP US); C23C 2/02 (2013.01 - EP US); C23C 2/0224 (2022.08 - EP US); C23C 2/024 (2022.08 - EP US); C23C 2/06 (2013.01 - EP US); C23C 2/40 (2013.01 - EP US); C21D 2211/008 (2013.01 - EP US)
Citation (search report)
- [XI] EP 1870483 A1 20071226 - JFE STEEL CORP [JP]
- [XI] KR 20130046941 A 20130508 - HYUNDAI STEEL CO [KR]
- [XA] JP 2013112866 A 20130610 - JFE STEEL CORP
- [XA] US 2013186526 A1 20130725 - NAKAMURA NOBUYUKI [JP], et al
- [XA] JP H06108152 A 19940419 - KOBE STEEL LTD
- [XA] EP 2759615 A1 20140730 - JFE STEEL CORP [JP]
- [A] JP 2003213369 A 20030730 - NIPPON STEEL CORP
- [A] JP 2000199034 A 20000718 - KAWASAKI STEEL CO
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3296416 A1 20180321; EP 3296416 A4 20180321; CN 107532262 A 20180102; JP 2018518596 A 20180712; JP 6543732 B2 20190710; US 2018112286 A1 20180426; WO 2016182098 A1 20161117
DOCDB simple family (application)
EP 15891914 A 20150512; CN 201580079982 A 20150512; JP 2017558653 A 20150512; KR 2015004766 W 20150512; US 201515572367 A 20150512