EP 3246426 B1 20200624 - METHOD FOR MANUFACTURING A THICK HIGH-TOUGHNESS HIGH-STRENGTH STEEL SHEET
Title (en)
METHOD FOR MANUFACTURING A THICK HIGH-TOUGHNESS HIGH-STRENGTH STEEL SHEET
Title (de)
VERFAHREN ZUR HERSTELLUNG VON EINEM DICKEN HOCHROBUSTEN HOCHFESTEN STAHLBLECH
Title (fr)
PROCÉDÉ DE FABRICATION D'UNE TÔLE D'ACIER ÉPAISSE DE HAUTE TÉNACITÉ ET DE HAUTE RÉSISTANCE
Publication
Application
Priority
- JP 2015006670 A 20150116
- JP 2016000197 W 20160115
Abstract (en)
[origin: EP3246426A1] A technique for achieving high surface toughness and high strength and toughness of the inner part of a steel plate is provided. A thick-walled high-toughness high-strength steel plate is manufactured from steel having a particular composition and casted under conditions where the cooling rate of a surface during solidification is 1°C/s or less. The surface of the steel plate has a toughness (vE-40) of 70 J or more, and the steel plate has a thickness of 100 mm or more. The surface of the steel plate has high toughness, and the inner part of the steel plate has high strength and toughness.
IPC 8 full level
C21D 6/00 (2006.01); C21D 8/02 (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 38/16 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/54 (2006.01); C22C 38/58 (2006.01); B21B 1/02 (2006.01); B21B 3/00 (2006.01); B21B 3/02 (2006.01); C21D 7/13 (2006.01); C21D 9/00 (2006.01)
CPC (source: EP KR US)
B21B 1/38 (2013.01 - KR); B21B 3/00 (2013.01 - KR); C21D 6/004 (2013.01 - EP US); C21D 6/005 (2013.01 - EP US); C21D 6/008 (2013.01 - EP US); C21D 8/0205 (2013.01 - EP US); C21D 8/0226 (2013.01 - EP KR US); C21D 8/0263 (2013.01 - EP KR US); C22C 38/00 (2013.01 - US); C22C 38/001 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/005 (2013.01 - EP US); C22C 38/02 (2013.01 - EP 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 38/16 (2013.01 - EP US); C22C 38/42 (2013.01 - EP KR US); C22C 38/44 (2013.01 - EP KR US); C22C 38/46 (2013.01 - EP KR US); C22C 38/48 (2013.01 - EP KR US); C22C 38/50 (2013.01 - EP US); C22C 38/54 (2013.01 - EP US); C22C 38/58 (2013.01 - EP KR US); B21B 1/024 (2013.01 - EP US); B21B 1/026 (2013.01 - EP US); B21B 3/00 (2013.01 - EP US); B21B 3/02 (2013.01 - EP US); B21B 2001/028 (2013.01 - EP US); C21D 7/13 (2013.01 - EP US); C21D 9/0081 (2013.01 - EP US); C21D 9/46 (2013.01 - EP US); C21D 2211/002 (2013.01 - EP US); C21D 2211/008 (2013.01 - EP US)
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 3246426 A1 20171122; EP 3246426 A4 20180110; EP 3246426 B1 20200624; CA 2969200 A1 20160721; CA 2969200 C 20200602; CN 107208212 A 20170926; CN 107208212 B 20200117; JP 6048626 B1 20161221; JP WO2016114146 A1 20170427; KR 101994784 B1 20190701; KR 20170095307 A 20170822; SG 11201704242T A 20170629; US 2017369958 A1 20171228; WO 2016114146 A1 20160721
DOCDB simple family (application)
EP 16737217 A 20160115; CA 2969200 A 20160115; CN 201680005979 A 20160115; JP 2016000197 W 20160115; JP 2016532648 A 20160115; KR 20177019203 A 20160115; SG 11201704242T A 20160115; US 201615543364 A 20160115