EP 1885899 A4 20101229 - 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 LAMINEE A FROID AYANT UN RAPPORT DE RENDEMENT ELEVE ET MOINS D ANISOTROPIE ET SON PROCEDE 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)
Citation (search report)
- [X] EP 1136575 A1 20010926 - NIPPON KOKAN KK [JP]
- [A] EP 0386758 A1 19900912 - KAWASAKI STEEL CO [JP]
- [A] EP 0792942 A1 19970903 - KAWASAKI STEEL CO [JP]
- [A] US 2004168753 A1 20040902 - NAKAJIMA KATSUMI [JP], et al
- [A] US 2004055672 A1 20040325 - KAMI CHIKARA [JP], et al
- [A] DE 19628714 C1 19971204 - MANNESMANN AG [DE]
- [AP] WO 2005061748 A1 20050707 - POSCO [KR], et al
- [AP] WO 2005045085 A1 20050519 - POSCO [KR], et al
- See references of WO 2006118424A1
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