EP 2094876 B1 20140416 - PROCESS FOR PRODUCING A STEEL STRIP COMPRISING A RELATIVELY HIGH STRENGTH DUAL PHASE STEEL
Title (en)
PROCESS FOR PRODUCING A STEEL STRIP COMPRISING A RELATIVELY HIGH STRENGTH DUAL PHASE STEEL
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES STAHLBANDES AUS EINEM HÖHERFESTEN DUALPHASENSTAHL
Title (fr)
PROCÉDÉ DE FABRICATION D'UN FEUILLARD D'ACIER À PARTIR D'UN ACIER BIPHASIQUE À HAUTE RÉSISTANCE MÉCANIQUE
Publication
Application
Priority
- DE 2007002074 W 20071113
- DE 102006054300 A 20061114
Abstract (en)
[origin: WO2008058530A1] It is an object of the invention to provide a steel which is suitable for continuous annealing of hot and cold strip. This object is achieved by a relatively high strength dual phase steel for a cold- or hot-rolled steel strip having excellent forming properties, in particular for light vehicle construction, comprising the elements indicated in claim 1, balance iron including customary steel-accompanying elements with optional addition of Ti, with the required dual phase microstructure being produced during continuous annealing and the cold- or hot-rolled steel strip being heated to a temperature in the range from 820 to 1000°C, preferably from 840 to 1000°C, in the continuous annealing furnace in a single-stage process and the annealed steel strip subsequently being cooled from the annealing temperature at a cooling rate of from 15 to 30°C/s.
IPC 8 full level
C21D 8/02 (2006.01); C22C 38/12 (2006.01)
CPC (source: EP KR US)
C21D 8/02 (2013.01 - KR); C21D 8/1222 (2013.01 - EP US); C21D 8/1233 (2013.01 - EP US); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/06 (2013.01 - EP US); C22C 38/12 (2013.01 - EP KR US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
DE 102006054300 A1 20080515; EP 2094876 A1 20090902; EP 2094876 B1 20140416; KR 20090089311 A 20090821; RU 2009122381 A 20101220; RU 2443787 C2 20120227; US 2010000634 A1 20100107; WO 2008058530 A1 20080522
DOCDB simple family (application)
DE 102006054300 A 20061114; DE 2007002074 W 20071113; EP 07817796 A 20071113; KR 20097009714 A 20071113; RU 2009122381 A 20071113; US 51471607 A 20071113