EP 4095279 A1 20221130 - MARTENSITIC STAINLESS STEEL SHEET AND MARTENSITIC STAINLESS STEEL MEMBER
Title (en)
MARTENSITIC STAINLESS STEEL SHEET AND MARTENSITIC STAINLESS STEEL MEMBER
Title (de)
PLATTE AUS MARTENSITISCHEM EDELSTAHL UND ELEMENT AUS MARTENSITISCHEM EDELSTAHL
Title (fr)
TÔLE D'ACIER INOXYDABLE MARTENSITIQUE ET ÉLÉMENT EN ACIER INOXYDABLE MARTENSITIQUE
Publication
Application
Priority
- JP 2020008086 A 20200122
- JP 2021001195 W 20210115
Abstract (en)
A martensitic stainless steel sheet contains, in mass%: C: 0.100 to 0.170%; Si: 0.30 to 0.60%; Mn: 0.10 to 0.60%; Cr: 11.0 to 15.0%; Ni: 0.05 to 0.60%; Cu: 0.006 to 0.50%; V: 0.010 to 0.10%; Al: 0.05% or less; and N: 0.040% or more and less than 0.060%, where C+1/2N is 0.130 to 0.190% and γp represented by a formula (1) is 120 or more. When the martensitic stainless steel sheet is hardened and tempered, an area ratio in a sheet-thickness cross section of a δ ferrite (δFe) present in a sheet-thickness central part of the steel sheet is less than 0.1%.
IPC 8 full level
C22C 38/00 (2006.01); C21D 6/00 (2006.01); C21D 9/00 (2006.01); C22C 38/46 (2006.01); C22C 38/50 (2006.01)
CPC (source: EP KR)
C21D 1/18 (2013.01 - EP); C21D 1/26 (2013.01 - EP); C21D 1/56 (2013.01 - EP); C21D 6/00 (2013.01 - KR); C21D 6/004 (2013.01 - EP); C21D 8/0205 (2013.01 - EP); C21D 8/0226 (2013.01 - EP); C21D 8/0247 (2013.01 - EP); C21D 8/0263 (2013.01 - EP); C21D 9/0068 (2013.01 - EP); C21D 9/18 (2013.01 - EP); C21D 9/46 (2013.01 - EP KR); C22C 38/001 (2013.01 - EP KR); C22C 38/002 (2013.01 - EP); C22C 38/008 (2013.01 - EP); C22C 38/02 (2013.01 - EP); C22C 38/04 (2013.01 - EP); C22C 38/06 (2013.01 - EP KR); C22C 38/42 (2013.01 - EP KR); C22C 38/44 (2013.01 - EP KR); C22C 38/46 (2013.01 - EP KR); C22C 38/48 (2013.01 - EP KR); C22C 38/50 (2013.01 - EP KR); C21D 2211/008 (2013.01 - EP KR)
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4095279 A1 20221130; EP 4095279 A4 20240821; CN 115003838 A 20220902; CN 115003838 B 20230602; JP 2023046414 A 20230405; KR 20220115621 A 20220817; TW 202134450 A 20210916; TW I747722 B 20211121; WO 2021149601 A1 20210729
DOCDB simple family (application)
EP 21744342 A 20210115; CN 202180010305 A 20210115; JP 2020008086 A 20200122; JP 2021001195 W 20210115; KR 20227025250 A 20210115; TW 110102197 A 20210120