Global Patent Index - EP 3243923 A4

EP 3243923 A4 20171115 - SUPER HIGH STRENGTH PLATED STEEL SHEET HAVING TENSILE STRENGTH OF 1300 MPA OR MORE, AND MANUFACTURING METHOD THEREFOR

Title (en)

SUPER HIGH STRENGTH PLATED STEEL SHEET HAVING TENSILE STRENGTH OF 1300 MPA OR MORE, AND MANUFACTURING METHOD THEREFOR

Title (de)

PLATTIERTES STAHLBLECH MIT EXTREM HOHER FESTIGKEIT MIT ZUGFESTIGKEIT VON 1300 MPA ODER MEHR UND HERSTELLUNGSVERFAHREN DAFÜR

Title (fr)

FEUILLE D'ACIER PLAQUÉE À TRÈS HAUTE RÉSISTANCE AYANT UNE RÉSISTANCE À LA TRACTION DE 1 300 MPA OU PLUS ET SON PROCÉDÉ DE FABRICATION

Publication

EP 3243923 A4 20171115 (EN)

Application

EP 15877109 A 20150107

Priority

KR 2015000136 W 20150107

Abstract (en)

[origin: EP3243923A1] The present invention relates to a super high strength plated steel sheet used in a vehicle, etc. and, more specifically, to a super high strength plated steel sheet having a tensile strength of 1300 MPa or more, and a manufacturing method therefor. According to the present invention, it is possible to provide a super high strength plated steel sheet in which cracks on an edge portion do not occur after slitting and coiling processes.

IPC 8 full level

C22C 38/26 (2006.01); C21D 6/00 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/18 (2006.01); C22C 38/28 (2006.01); C22C 38/38 (2006.01); C23C 2/00 (2006.01); C23C 2/06 (2006.01)

CPC (source: EP US)

C21D 6/005 (2013.01 - EP); C21D 9/46 (2013.01 - EP); C22C 38/00 (2013.01 - EP); C22C 38/02 (2013.01 - EP); C22C 38/04 (2013.01 - EP); C22C 38/06 (2013.01 - EP); C22C 38/18 (2013.01 - EP); C22C 38/26 (2013.01 - EP); C22C 38/28 (2013.01 - EP); C22C 38/38 (2013.01 - EP); C23C 2/00 (2013.01 - EP US); C23C 2/06 (2013.01 - EP)

Citation (search report)

  • [XAY] KR 20130056052 A 20130529 - POSCO [KR]
  • [XA] US 2014234657 A1 20140821 - AZUMA MASAFUMI [JP], et al
  • [XA] US 2014377584 A1 20141225 - HASEGAWA HIROSHI [JP], et al
  • [XA] JP 2012229466 A 20121122 - JFE STEEL CORP
  • [YA] US 2011198002 A1 20110818 - NAKAGAITO TATSUYA [JP], et al
  • [A] US 2014234658 A1 20140821 - NOZAKI TAKAYUKI [JP], et al
  • [A] US 2014227556 A1 20140814 - SATO KOICHI [JP], et al
  • [A] ZHILI ; FENG: "Permeation, Diffusion, Solubility Measurements: Results and Issues", 25 September 2007 (2007-09-25), XP055401727, Retrieved from the Internet <URL:https://energy.gov/sites/prod/files/2014/03/f10/pipeline_group_feng_ms.pdf> [retrieved on 20170828]
  • [A] HANS JÜRGEN GRABKE ET AL: "ABSORPTION AND DIFFUSION OF HYDROGEN IN STEELS ABSORPCIJA IN DIFUZIJA VODIKA V JEKLIH", MATERIALS TECHNLOGY, 1 June 2000 (2000-06-01), pages 331 - 342, XP055401736, Retrieved from the Internet <URL:http://mit.imt.si/Revija/izvodi/mit006/grabke.pdf> [retrieved on 20170828]
  • See references of WO 2016111388A1

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 3243923 A1 20171115; EP 3243923 A4 20171115; EP 3243923 B1 20191023; CN 107148488 A 20170908; CN 107148488 B 20200207; WO 2016111388 A1 20160714; WO 2016111388 A8 20161215

DOCDB simple family (application)

EP 15877109 A 20150107; CN 201580072420 A 20150107; KR 2015000136 W 20150107