Global Patent Index - EP 2729590 B1

EP 2729590 B1 20151028 - HOT-ROLLED HIGH-STRENGTH STEEL STRIP WITH IMPROVED HAZ-SOFTENING RESISTANCE AND METHOD OF PRODUCING SAID STEEL

Title (en)

HOT-ROLLED HIGH-STRENGTH STEEL STRIP WITH IMPROVED HAZ-SOFTENING RESISTANCE AND METHOD OF PRODUCING SAID STEEL

Title (de)

HEISSGEWALZTER HOCHFESTER BANDSTAHL MIT VERBESSERTER HAZ-WEICHMACHERBESTÄNDIGKEIT UND HERSTELLUNGSVERFAHREN FÜR DIESEN STAHL

Title (fr)

BANDE D'ACIER HAUTE RÉSISTANCE LAMINÉE À CHAUD AVEC RÉSISTANCE ÉLEVÉE AU RAMOLLISSEMENT HAZ ET SON PROCÉDÉ DE PRODUCTION

Publication

EP 2729590 B1 (EN)

Application

EP 12735134 A

Priority

  • EP 11173383 A
  • EP 2012063515 W
  • EP 12735134 A

Abstract (en)

[origin: WO2013007729A1] Hot-rolled high-strength micro-alloyed steel strip with improved HAZ-softening resistance having a microstructure comprising martensite, tempered martensite and/or bainite.

IPC 8 full level

C22C 38/04 (2006.01); C21D 8/02 (2006.01); C22C 38/06 (2006.01); C22C 38/12 (2006.01)

CPC (source: EP)

C21D 8/0205 (2013.01); C21D 8/0226 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/12 (2013.01); C21D 2211/002 (2013.01); C21D 2211/008 (2013.01)

Citation (opposition)

Opponent : voestalpine Stahl GmbH

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)

WO 2013007729 A1 20130117; CN 103649355 A 20140319; CN 103649355 B 20160817; EP 2729590 A1 20140514; EP 2729590 B1 20151028

DOCDB simple family (application)

EP 2012063515 W 20120710; CN 201280034223 A 20120710; EP 12735134 A 20120710