EP 1885899 B1 20210811 - COLD ROLLED STEEL SHEET HAVING HIGH YIELD RATIO AND LESS ANISOTROPY, PROCESS FOR PRODUCING THE SAME
Title (en)
COLD ROLLED STEEL SHEET HAVING HIGH YIELD RATIO AND LESS ANISOTROPY, PROCESS FOR PRODUCING THE SAME
Title (de)
KALTGEWALZTES STAHLBLECH MIT HOHEM STRECKGRENZENVERHÄLTNIS UND WENIGER ANISOTROPIE UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
FEUILLE D'ACIER LAMINÉE À FROID AYANT UN RAPPORT DE RENDEMENT ÉLEVÉ ET MOINS D'ANISOTROPIE ET SON PROCÉDÉ DE PRODUCTION
Publication
Application
Priority
- KR 2006001669 W 20060503
- KR 20050037183 A 20050503
- KR 20050129243 A 20051226
- KR 20050130131 A 20051226
- KR 20050130130 A 20051226
- KR 20050130132 A 20051226
Abstract (en)
[origin: WO2006118424A1] 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 hardenability.
IPC 8 full level
C22C 38/00 (2006.01)
CPC (source: EP)
C21D 8/0426 (2013.01); C21D 8/0436 (2013.01); C21D 8/0463 (2013.01); C21D 8/0473 (2013.01); C21D 9/48 (2013.01); C22C 38/002 (2013.01); C22C 38/004 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/12 (2013.01); C22C 38/16 (2013.01); C22C 38/60 (2013.01); C21D 2211/004 (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 2006118424 A1 20061109; EP 1885899 A1 20080213; EP 1885899 A4 20101229; EP 1885899 B1 20210811
DOCDB simple family (application)
KR 2006001669 W 20060503; EP 06732896 A 20060503