EP 2860276 A1 20150415 - STEEL PLATE
Title (en)
STEEL PLATE
Title (de)
STAHLPLATTE
Title (fr)
PLAQUE D'ACIER
Publication
Application
Priority
JP 2013071864 W 20130813
Abstract (en)
In a steel sheet, an A value is 4.5% or less, a Pcm value is 0.25% or less, a yield strength is 460 N/mm 2 to 580 N/mm 2 , a tensile strength is 550 N/mm 2 to 670 N/mm2, a difference between a hardness at 1/8t, which is a 1/8 thickness position from a surface of the steel plate in a through-thickness direction, and a hardness at 1/2t, which is a 1/2 thickness position from the surface of the steel plate in the through-thickness direction, is 20 or less by Vickers hardness, and an average grain size at 1/8t is 35 µm or less.
IPC 8 full level
C22C 38/00 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP)
C21D 9/46 (2013.01); C22C 38/00 (2013.01); C22C 38/58 (2013.01); C21D 8/0226 (2013.01); C21D 8/0263 (2013.01)
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 2860276 A1 20150415; EP 2860276 A4 20151230; EP 2860276 B1 20180502; CN 104520463 A 20150415; CN 104520463 B 20160330; JP 5510620 B1 20140604; JP WO2015022729 A1 20170302; KR 101542709 B1 20150812; KR 20150029615 A 20150318; WO 2015022729 A1 20150219
DOCDB simple family (application)
EP 13883843 A 20130813; CN 201380025901 A 20130813; JP 2013071864 W 20130813; JP 2013553679 A 20130813; KR 20147031774 A 20130813