EP 2966186 B1 20191016 - STRENGTH MEMBER AND MANUFACTURING METHOD THEREFOR
Title (en)
STRENGTH MEMBER AND MANUFACTURING METHOD THEREFOR
Title (de)
STÄRKEELEMENT UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
ÉLÉMENT DE RENFORT ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- JP 2013047106 A 20130308
- JP 2014056057 W 20140307
Abstract (en)
[origin: EP2966186A1] A strength member and a manufacturing method thereof in which settling resistance and yield strength can be substantially improved without reducing cost advantages or adding substantial process changes, is provided. A strength member comprises, by mass %, 0.5 to 0.7 % of C, 1.0 to 2.0 % of Si, 0.1 to 1.0 % of Mn, 0.1 to 1.0 % of Cr, 0.035 % or less of P, 0.035 % or less of S, and the balance of Fe and inevitable impurities, wherein an area ratio of bainite is 65 % or more, and an average dislocation density of a freely selected cross section is 2.0 × 10 16 m -2 or less.
IPC 8 full level
C21D 7/06 (2006.01); C21D 7/10 (2006.01); C21D 9/02 (2006.01); C22C 38/00 (2006.01); C22C 38/34 (2006.01); F16F 1/02 (2006.01)
CPC (source: EP)
C21D 1/20 (2013.01); C21D 7/06 (2013.01); C21D 7/10 (2013.01); C21D 9/02 (2013.01); C22C 38/00 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/18 (2013.01); C22C 38/34 (2013.01); C21D 2211/002 (2013.01); C21D 2211/004 (2013.01)
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 2966186 A1 20160113; EP 2966186 A4 20161123; EP 2966186 B1 20191016; CN 105008572 A 20151028; ES 2765274 T3 20200608; JP 6284279 B2 20180228; JP WO2014136966 A1 20170216; WO 2014136966 A1 20140912
DOCDB simple family (application)
EP 14760929 A 20140307; CN 201480012993 A 20140307; ES 14760929 T 20140307; JP 2014056057 W 20140307; JP 2015504458 A 20140307