EP 1749895 A1 20070207 - Manufacture of steel sheets having high resistance and excellent ductility, products thereof
Title (en)
Manufacture of steel sheets having high resistance and excellent ductility, products thereof
Title (de)
Herstellungsprozess von Stahlblechen mit hoher Festigkeit und exzellenter Dehnung und hergestellte Produkte
Title (fr)
Procédé de fabrication de tôles d'acier présentant une haute résistance et une excellente ductilité, et tôles ainsi produites
Publication
Application
Priority
EP 05291675 A 20050804
Abstract (en)
A steel composition comprises (by wt.%) : (A) 0.08 = carbon (C) = 0.23; (B) 1 = manganese (Mn) = 2; (C) 1 = silicon (Si) = 2; (D) aluminum (Al) = 0.030; (E) 0.1 = vanadium (V) = 0.25; (F) titanium (Ti) = 0.010; (G) sulfur (S) = 0.015; (H) phosphorus (P) = 0.1; (I) 0.004 = nitrogen (N) = 0.012; (J) optional one or more elements chosen from niobium (Nb) = 0.1, molybdenum (Mo) = 0.5 and chromium (Cr) = 0.3; (K) remainder being iron (Fe) and inevitable production impurities. Independent claims are also included for : (1) a steel sheet of this composition; (2) the fabrication of a hot rolled steel sheet of this composition; (3) the fabrication of a cold rolled steel sheet of this composition.
IPC 8 full level
C22C 38/00 (2006.01); C22C 38/04 (2006.01)
CPC (source: EP KR US)
C21D 8/0226 (2013.01 - KR); C21D 8/0236 (2013.01 - KR); C22C 38/001 (2013.01 - EP KR US); C22C 38/02 (2013.01 - EP KR US); C22C 38/04 (2013.01 - EP KR US); C22C 38/06 (2013.01 - KR); C22C 38/12 (2013.01 - EP KR US); C22C 38/14 (2013.01 - EP KR US)
Citation (search report)
- [XY] WO 2004063410 A1 20040729 - NIPPON STEEL CORP [JP], et al
- [A] EP 1375820 A1 20040102 - SUMITOMO METAL IND [JP]
- [A] EP 0974677 A1 20000126 - NIPPON STEEL CORP [JP]
- [A] EP 1099769 A1 20010516 - USINOR CONSULTANTS [FR]
- [A] EP 1559798 A1 20050803 - KOBE STEEL LTD [JP], et al
- [YA] PATENT ABSTRACTS OF JAPAN vol. 2000, no. 23 10 February 2001 (2001-02-10)
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
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1749895 A1 20070207; BR PI0614391 A2 20110322; BR PI0614391 B1 20161018; BR PI0614391 B8 20170321; CA 2617879 A1 20070215; CA 2617879 C 20111115; CN 101263239 A 20080910; CN 101263239 B 20120627; EP 1913169 A1 20080423; EP 1913169 B1 20140903; ES 2515116 T3 20141029; JP 2009503267 A 20090129; JP 5283504 B2 20130904; KR 101222724 B1 20130116; KR 101232972 B1 20130213; KR 20080038202 A 20080502; KR 20120114411 A 20121016; MA 29691 B1 20080801; MX 2008001653 A 20080422; RU 2008117135 A 20091110; RU 2403311 C2 20101110; UA 92039 C2 20100927; US 2008199347 A1 20080821; US 9732404 B2 20170815; WO 2007017565 A1 20070215; ZA 200801068 B 20081231
DOCDB simple family (application)
EP 05291675 A 20050804; BR PI0614391 A 20060707; CA 2617879 A 20060707; CN 200680033376 A 20060707; EP 06778838 A 20060707; ES 06778838 T 20060707; FR 2006001668 W 20060707; JP 2008524537 A 20060707; KR 20087005304 A 20060707; KR 20127025650 A 20060707; MA 30616 A 20080201; MX 2008001653 A 20060707; RU 2008117135 A 20060707; UA A200805640 A 20060707; US 99760906 A 20060707; ZA 200801068 A 20080204