EP 1888800 A1 20080220 - COLD ROLLED STEEL SHEET HAVING SUPERIOR FORMABILITY AND HIGH YIELD RATIO, PROCESS FOR PRODUCING THE SAME
Title (en)
COLD ROLLED STEEL SHEET HAVING SUPERIOR FORMABILITY AND HIGH YIELD RATIO, PROCESS FOR PRODUCING THE SAME
Title (de)
KALTGEWALZTES STAHLBLECH MIT HERVORRAGENDER VERFORMBARKEIT UND HERVORRAGENDEM STRECKGRENZENVERHÄLTNIS UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
FEUILLE D ACIER LAMINEE A FROID AYANT UNE FORMABILITE SUPERIEURE ET UN RAPPORT DE RENDEMENT ELEVE ET SON PROCEDE DE PRODUCTION
Publication
Application
Priority
- KR 2006001670 W 20060503
- KR 20050037183 A 20050503
- KR 20050129235 A 20051226
- KR 20050129236 A 20051226
- KR 20050129237 A 20051226
- KR 20050129239 A 20051226
Abstract (en)
[origin: WO2006118425A1] Disclosed herein is a Nb-Ti composite IF steel in which fine precipitates, such as CuS precipitates, having a size of 0.2 µm or less are distributed. The distribution of fine precipitates in the Nb-Ti composite IF steel enhances the yield strength and lowers the in-plane anisotropy index. The nanometer-sized precipitates allow the formation of minute crystal grains. As a result, dissolved carbon is present in a larger amount in the crystal grain boundaries than within the crystal grains, which is advantageous in terms of room-temperature non-aging properties and bake handenability.
IPC 8 full level
C22C 38/00 (2006.01)
CPC (source: EP)
C21D 8/04 (2013.01); C21D 9/46 (2013.01); C21D 11/00 (2013.01); C22C 38/002 (2013.01); C22C 38/004 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/14 (2013.01); C22C 38/16 (2013.01); C22C 38/60 (2013.01)
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 NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2006118425 A1 20061109; EP 1888800 A1 20080220; EP 1888800 A4 20110126; EP 1888800 B1 20181107
DOCDB simple family (application)
KR 2006001670 W 20060503; EP 06732897 A 20060503