EP 1937853 B1 20131225 - BAKE-HARDENABLE COLD ROLLED STEEL SHEET WITH SUPERIOR STRENGTH AND AGING RESISTANCE METHOD FOR MANUFACTURING THE COLD ROLLED STEEL SHEET
Title (en)
BAKE-HARDENABLE COLD ROLLED STEEL SHEET WITH SUPERIOR STRENGTH AND AGING RESISTANCE METHOD FOR MANUFACTURING THE COLD ROLLED STEEL SHEET
Title (de)
DURCH BAKE-HARDENING HÄRTBARES KALTGEWALZTES STAHLBLECH MIT ÜBERLEGENER FESTIGKEIT UND ALTERUNGSBESTÄNDIGKEIT UND VERFAHREN ZUR HERSTELLUNG DES KALTGEWALZTEN STAHLBLECHS
Title (fr)
FEUILLE D'ACIER LAMINEE A FROID, DURCISSABLE A LA CUISSON DOTEE D'UNE RESISTANCE SUPERIEURE ET D'UNE RESISTANCE AU VIEILLISSEMENT, ET PROCEDE DE FABRICATION DE LA FEUILLE D'ACIER LAMINEE A FROID
Publication
Application
Priority
- KR 2006003777 W 20060922
- KR 20050088518 A 20050923
Abstract (en)
[origin: WO2007035059A1] A bake-hardenable cold rolled steel sheet with high strength and superior aging resistance used for outer panels of an automobile body, a galvannealed steel sheet using the cold-rolled steel sheet, and a method for manufacturing the cold-rolled steel sheet are disclosed. The steel sheet comprises, by weight%, C: 0.0016 ~ 0.0025%, Si: 0.02% or less, Mn: 0.2 ~ 1.2%, P: 0.05 ~ 0.11%, S: 0.01% or less, Sol. Al: 0.08 ~ 0.12%, N: 0.0025% or less, Ti: 0 ~ 0.003%, Nb: 0.003 ~ 0.011%, Mo: 0.01 ~ 0.1%, B: 0.0005 ~ 0.0015%, the balance of Fe and other unavoidable impurities. The steel sheet has superior bake hardenability, aging resistance at room temperature, and secondary work embrittlement resistance.
IPC 8 full level
C22C 38/04 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C21D 9/56 (2006.01); C22C 38/06 (2006.01); C22C 38/12 (2006.01)
CPC (source: EP KR US)
C21D 8/02 (2013.01 - KR); C21D 8/0236 (2013.01 - EP US); C21D 9/46 (2013.01 - EP US); C21D 9/56 (2013.01 - EP US); C22C 38/04 (2013.01 - EP KR US); C22C 38/06 (2013.01 - EP US); C22C 38/12 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR SK
DOCDB simple family (publication)
WO 2007035059 A1 20070329; CN 101310031 A 20081119; CN 101310031 B 20101229; EP 1937853 A1 20080702; EP 1937853 A4 20111019; EP 1937853 B1 20131225; JP 2009509046 A 20090305; JP 4834733 B2 20111214; KR 100685037 B1 20070220; US 2008251168 A1 20081016
DOCDB simple family (application)
KR 2006003777 W 20060922; CN 200680042882 A 20060922; EP 06798860 A 20060922; JP 2008532164 A 20060922; KR 20050088518 A 20050923; US 6761706 A 20060922