EP 3225708 A4 20180502 - HIGH-STRENGTH HIGH-DUCTILITY STEEL SHEET
Title (en)
HIGH-STRENGTH HIGH-DUCTILITY STEEL SHEET
Title (de)
HOCHFESTES KALTGEWALZTES STAHLBLECH
Title (fr)
TÔLE D'ACIER À HAUTE RÉSISTANCE ET À HAUTE DUCTILITÉ
Publication
Application
Priority
- JP 2014238710 A 20141126
- JP 2015083078 W 20151125
Abstract (en)
[origin: EP3225708A1] A high-strength, high-ductility steel sheet including a characteristic alloy component, the steel structure thereof including 8 area% residual austenite with respect to the entire structure, the remainder being one or more of bainite, martensite, tempering bainite, and tempering martensite, and the average carbon concentration and the standard deviation of the carbon concentration distribution in the residual austenite each being in a specific range.
IPC 8 full level
C21D 1/20 (2006.01); C21D 6/00 (2006.01); C21D 8/00 (2006.01); C21D 8/02 (2006.01); C21D 8/04 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/08 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/16 (2006.01); C22C 38/18 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP KR US)
C21D 1/20 (2013.01 - EP US); C21D 8/005 (2013.01 - EP US); C21D 8/0205 (2013.01 - EP US); C21D 8/0226 (2013.01 - EP US); C21D 8/0236 (2013.01 - EP US); C21D 8/0247 (2013.01 - EP US); C21D 8/04 (2013.01 - EP US); C21D 8/0405 (2013.01 - EP US); C21D 8/0421 (2013.01 - EP US); C21D 8/0447 (2013.01 - EP US); C21D 9/46 (2013.01 - EP KR US); C22C 38/00 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/02 (2013.01 - EP KR US); C22C 38/04 (2013.01 - EP KR US); C22C 38/06 (2013.01 - EP KR US); C22C 38/08 (2013.01 - EP US); C22C 38/12 (2013.01 - EP US); C22C 38/14 (2013.01 - EP US); C22C 38/16 (2013.01 - EP US); C22C 38/18 (2013.01 - EP US); C22C 38/58 (2013.01 - EP KR US); C21D 6/005 (2013.01 - EP US); C21D 6/008 (2013.01 - EP US); C21D 8/0426 (2013.01 - EP US); C21D 8/0436 (2013.01 - EP US); C21D 2211/001 (2013.01 - KR); C21D 2211/002 (2013.01 - EP US); C21D 2211/008 (2013.01 - EP US)
Citation (search report)
- [X] JP 2013032581 A 20130214 - NIPPON STEEL & SUMITOMO METAL CORP
- [I] WO 2013146087 A1 20131003 - KOBE STEEL LTD [JP] & US 2015101712 A1 20150416 - FUTAMURA YUICHI [JP], et al
- [I] US 2011186189 A1 20110804 - FUTAMURA YUICHI [JP]
- [A] YUN-CHUL JUNG ET AL: "Morphology and growth process of bainitic ferrite in steels", METALS AND MATERIALS (INSTITUTE OF METALS), vol. 4, no. 2, 1 March 1998 (1998-03-01), pages 125 - 134, XP055458188, ISSN: 1225-9438, DOI: 10.1007/BF03026029
- See references of WO 2016084847A1
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 3225708 A1 20171004; EP 3225708 A4 20180502; CN 107002192 A 20170801; CN 107002192 B 20190308; JP 2016098427 A 20160530; JP 6282577 B2 20180221; KR 102111921 B1 20200518; KR 20170070230 A 20170621; US 2017268077 A1 20170921; WO 2016084847 A1 20160602
DOCDB simple family (application)
EP 15862199 A 20151125; CN 201580061877 A 20151125; JP 2014238710 A 20141126; JP 2015083078 W 20151125; KR 20177013590 A 20151125; US 201515528675 A 20151125