EP 3524707 A1 20190814 - STEEL MATERIAL
Title (en)
STEEL MATERIAL
Title (de)
STAHLMATERIAL
Title (fr)
MATÉRIAU EN ACIER
Publication
Application
Priority
JP 2017044984 W 20171214
Abstract (en)
A steel material, comprising, in terms of percentage by mass: from 0.01 to 0.20% of C, from 0.01 to 1.00% of Si, from 0.05 to 3.00% of Mn, from 0 to 0.050% of P, from 0 to 0.0100% of S, from 0.05 to 0.25% of Sn, from 0 to 0.100% of Al, from 0.0005 to 0.0100% of N, from 0.0001 to 0.0100% of O, from 0 to 0.050% of Ti, from 0 to 0.050% of Nb, from 0 to 0.050% of V, from 0 to 0.050% of W, from 0 to 0.050% of Mo, from 0 to 0.10% of Cu, Ni: from 0 to 0.05% of Ni, from 0 to 0.10% of Cr, from 0 to 0.05% of Sb, from 0 to 0.0010% of B, from 0 to 0.0100% of Ca, from 0 to 0.0100% of Mg, from 0 to 0.0100% of REM, and a balance consisting of Fe and impurities, wherein an Sn ratio of an Sn concentration, a, at a crystal grain boundary to an Sn concentration, b, inside a crystal grain, expressed by a/b, is 1.2 or less.
IPC 8 full level
C21D 8/02 (2006.01); C22C 38/00 (2006.01); C22C 38/60 (2006.01)
CPC (source: EP KR)
C21D 8/02 (2013.01 - EP); C22C 38/00 (2013.01 - EP); C22C 38/008 (2013.01 - KR); C22C 38/02 (2013.01 - EP); C22C 38/04 (2013.01 - EP); C22C 38/58 (2013.01 - EP KR); C22C 38/60 (2013.01 - EP)
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 3524707 A1 20190814; EP 3524707 A4 20191204; EP 3524707 B1 20240207; AU 2017433092 A1 20190704; AU 2017433092 B2 20200312; CN 110168123 A 20190823; CN 110168123 B 20200825; JP 6394839 B1 20180926; JP WO2019116520 A1 20191219; KR 102011250 B1 20190814; KR 20190072517 A 20190625; WO 2019116520 A1 20190620
DOCDB simple family (application)
EP 17925535 A 20171214; AU 2017433092 A 20171214; CN 201780060066 A 20171214; JP 2017044984 W 20171214; JP 2018515902 A 20171214; KR 20197009199 A 20171214