EP 1960563 A1 20080827 - HIGH STRENGTH THIN STEEL SHEET HAVING EXCELLENT PLATING AND ELONGATION PROPERTY AND THE METHOD FOR MANUFACTURING THE SAME
Title (en)
HIGH STRENGTH THIN STEEL SHEET HAVING EXCELLENT PLATING AND ELONGATION PROPERTY AND THE METHOD FOR MANUFACTURING THE SAME
Title (de)
HOCHFESTES DÜNNES STAHLBLECH MIT HERVORRAGENDER PLATTIERUNGS- UND DEHNUNGSEINGESCHAFT UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
TOLE MINCE DE HAUTE RESISTANCE PRESENTANT D'EXCELLENTES PROPRIETES DE REVETEMENT ET D'ALLONGEMENT, ET SON PROCEDE DE FABRICATION
Publication
Application
Priority
- KR 2006005208 W 20061205
- KR 20050118741 A 20051207
Abstract (en)
[origin: WO2007066955A1] Provided is a high-strength, thin steel sheet for deep-drawing which is largely used for automotive interior panels and has excellent plating and elongation properties, and a method for manufacturing the same. The thin steel sheet for deep-drawing having excellent plating and elongation properties comprises (i) less than 0.01 wt% of carbon, less than 0.3 wt% of silicon, 0.03-0.2 wt% of manganese, less than 0.15 wt% of phosphorus, 0.003-0.015 wt% of sulfur, 0.1-0.4 wt% of soluble aluminum (Sol.Al), less than 0.01 wt% of nitrogen, 0.003-0.01 wt% of titanium, 0.003-0.04 wt% of niobium, 0.0002-0.002 wt% of boron, less than 0.05 wt% of molybdenum, 0.005-0.2 wt% of copper, 0.05-0.5 wt% of chromium, 0.02-0.1 wt% of antimony, and the balance of Fe with inevitable impurities, and ii) more than 75% MnS, CuS and (Mn,Cu)S precipitates having a size of less than 20 nm. The present invention can provide a thin steel sheet for deep-drawing, having tensile strength of more than 440 MPa and excellent plating and elongation properties.
IPC 8 full level
C22C 38/04 (2006.01); C21D 8/02 (2006.01); C21D 8/04 (2006.01)
CPC (source: EP KR)
C21D 8/02 (2013.01 - EP KR); C21D 8/04 (2013.01 - EP KR); C22C 38/001 (2013.01 - EP KR); C22C 38/02 (2013.01 - EP KR); C22C 38/04 (2013.01 - EP KR); C22C 38/06 (2013.01 - EP KR); C22C 38/20 (2013.01 - EP KR); C22C 38/22 (2013.01 - EP KR); C22C 38/26 (2013.01 - EP KR); C22C 38/28 (2013.01 - EP KR); C22C 38/32 (2013.01 - EP KR)
Designated contracting state (EPC)
DE FR SK
DOCDB simple family (publication)
WO 2007066955 A1 20070614; CN 101326301 A 20081217; CN 101326301 B 20110608; EP 1960563 A1 20080827; EP 1960563 A4 20100922; EP 1960563 B1 20130220; JP 2009518540 A 20090507; JP 5097712 B2 20121212; KR 100711362 B1 20070427
DOCDB simple family (application)
KR 2006005208 W 20061205; CN 200680046357 A 20061205; EP 06823915 A 20061205; JP 2008544248 A 20061205; KR 20050118741 A 20051207