EP 3418411 A1 20181226 - STEEL
Title (en)
STEEL
Title (de)
STAHL
Title (fr)
ACIER
Publication
Application
Priority
JP 2016054852 W 20160219
Abstract (en)
According to an aspect of the present invention, there is provided a steel containing, by mass%, C: 0.08% to 0.12%, Si: 0.05% to 0.50%, Mn: 1.00% to 3.00%, P: 0.040% or less, S: 0.020% or less, Cr: 1.0% to 2.5%, Cu: 0.01% to 0.50%, Ni: 0.75% to 3.20%, Mo: 0.10% to 0.50%, Nb: 0.005% to 0.050%, Al: 0.010% to 0.100%, N: 0.0050% to 0.0150%, V: 0% to 0.300%, Ca: 0% to 0.0100%, Zr: 0% to 0.0100%, Mg: 0% to 0.0100%, and a remainder including Fe and impurities, in which a number density of Mn sulfides having an equivalent circle diameter of more than 5 µm is 0 pieces/mm 2 to 10 pieces/mm 2 , and an average aspect ratio of the Mn sulfides having an equivalent circle diameter of 1.0 µm to 5.0 µm is 1.0 or more and 10.0 or less.
IPC 8 full level
C22C 38/00 (2006.01); C21D 8/06 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP KR US)
C21D 8/06 (2013.01 - KR); C22C 38/00 (2013.01 - EP US); C22C 38/001 (2013.01 - EP KR 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 38/42 (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 38/58 (2013.01 - EP KR US); C21D 8/06 (2013.01 - EP US); C21D 8/065 (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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3418411 A1 20181226; EP 3418411 A4 20190821; EP 3418411 B1 20201104; CN 108603260 A 20180928; CN 108603260 B 20210813; JP 6590000 B2 20191016; JP WO2017141424 A1 20181122; KR 102183900 B1 20201127; KR 20180099873 A 20180905; US 2019032178 A1 20190131; WO 2017141424 A1 20170824
DOCDB simple family (application)
EP 16890565 A 20160219; CN 201680081673 A 20160219; JP 2016054852 W 20160219; JP 2017567913 A 20160219; KR 20187022566 A 20160219; US 201616072757 A 20160219