EP 3305929 A1 20180411 - STEEL SHEET AND METHOD FOR PRODUCING SAME
Title (en)
STEEL SHEET AND METHOD FOR PRODUCING SAME
Title (de)
STAHLBLECH UND VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
TÔLE D'ACIER ET SON PROCÉDÉ DE PRODUCTION
Publication
Application
Priority
- JP 2015106745 A 20150526
- JP 2016065509 W 20160525
Abstract (en)
Low carbon steel plate excellent impact resistance characteristics after carburizing and quenching and after tempering, characterized by having a predetermined chemical composition, an average grain size of carbides of 0.4 µm to 2.0 µm, an area ratio of pearlite of 6% or less, a ratio of a number of carbides at the ferrite grain boundaries to the number of carbides inside the ferrite grains of over 1, and a Vickers hardness of 100HV to 180HV.
IPC 8 full level
C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/60 (2006.01)
CPC (source: EP KR US)
C21D 8/0205 (2013.01 - EP US); C21D 8/0226 (2013.01 - KR); C21D 8/0263 (2013.01 - KR); C21D 8/0463 (2013.01 - EP US); C21D 9/46 (2013.01 - EP KR US); C22C 38/001 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/005 (2013.01 - EP US); C22C 38/008 (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 US); C22C 38/22 (2013.01 - KR); C22C 38/28 (2013.01 - KR); C22C 38/32 (2013.01 - KR); C22C 38/42 (2013.01 - EP US); C22C 38/44 (2013.01 - EP US); C22C 38/46 (2013.01 - EP US); C22C 38/48 (2013.01 - EP US); C22C 38/50 (2013.01 - EP US); C22C 38/54 (2013.01 - EP US); C22C 38/60 (2013.01 - EP US); C23G 1/08 (2013.01 - KR); C21D 2211/005 (2013.01 - 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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3305929 A1 20180411; EP 3305929 A4 20181121; EP 3305929 A9 20190717; BR 112017024692 A2 20180724; CN 107614727 A 20180119; CN 107614727 B 20200114; JP 6119923 B1 20170426; JP WO2016190370 A1 20170615; KR 102029565 B1 20191007; KR 20170138508 A 20171215; MX 2017015016 A 20180413; TW 201708569 A 20170301; TW I604071 B 20171101; US 2018230582 A1 20180816; WO 2016190370 A1 20161201
DOCDB simple family (application)
EP 16800074 A 20160525; BR 112017024692 A 20160525; CN 201680030099 A 20160525; JP 2016065509 W 20160525; JP 2016559466 A 20160525; KR 20177033291 A 20160525; MX 2017015016 A 20160525; TW 105116491 A 20160526; US 201615576177 A 20160525