EP 2787098 A1 20141008 - STEEL MATERIAL WITH EXCELLENT CRASHWORTHINESS AND MANUFACTURING PROCESS THEREFOR
Title (en)
STEEL MATERIAL WITH EXCELLENT CRASHWORTHINESS AND MANUFACTURING PROCESS THEREFOR
Title (de)
STAHLMATERIAL MIT AUSGEZEICHNETER BRUCHFESTIGKEIT UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
MATÉRIAU D'ACIER PRÉSENTANT UNE EXCELLENTE RÉSISTANCE AU CHOC ET PROCÉDÉ DE FABRICATION DE CE DERNIER
Publication
Application
Priority
- JP 2011261604 A 20111130
- JP 2012003883 W 20120614
Abstract (en)
A steel with excellent collision energy absorbability and a method for manufacturing the same are provided, wherein the energy absorbability of a collision can be enhanced. A steel with excellent collision energy absorbability, characterized in that the steel composition satisfies Ceq ‰¤ 0.36%, the structure includes a ferritic phase and a hard phase, the volume fraction of the above-described ferritic phase is 75% or more in the whole plate thickness, the hardness thereof is Hv 140 or more and 160 or less, and the average grain size thereof is 2 µm or more.
IPC 8 full level
C21D 8/02 (2006.01); C22C 38/00 (2006.01); C22C 38/06 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP KR)
C21D 8/02 (2013.01 - EP); C21D 8/0205 (2013.01 - EP); C21D 8/0247 (2013.01 - KR); C21D 8/0263 (2013.01 - EP); C22C 38/00 (2013.01 - EP); 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 38/12 (2013.01 - EP KR); C22C 38/14 (2013.01 - EP KR); C22C 38/16 (2013.01 - EP); C21D 2211/005 (2013.01 - EP KR)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2787098 A1 20141008; EP 2787098 A4 20151118; EP 2787098 B1 20180905; CN 103958716 A 20140730; CN 103958716 B 20160824; JP 2013136829 A 20130711; JP 5953952 B2 20160720; KR 20140091745 A 20140722; KR 20160104077 A 20160902; WO 2013080398 A1 20130606
DOCDB simple family (application)
EP 12853662 A 20120614; CN 201280058550 A 20120614; JP 2012003883 W 20120614; JP 2012128483 A 20120606; KR 20147015819 A 20120614; KR 20167022453 A 20120614