EP 4249622 A1 20230927 - FERRITIC STAINLESS STEEL WITH IMPROVED STRENGTH, WORKABILITY, AND CORROSION RESISTANCE
Title (en)
FERRITIC STAINLESS STEEL WITH IMPROVED STRENGTH, WORKABILITY, AND CORROSION RESISTANCE
Title (de)
FERRITISCHER EDELSTAHL MIT VERBESSERTER FESTIGKEIT, BEARBEITBARKEIT UND KORROSIONSBESTÄNDIGKEIT
Title (fr)
ACIER INOXYDABLE FERRITIQUE PRÉSENTANT UNE RÉSISTANCE, UNE OUVRABILITÉ ET UNE RÉSISTANCE À LA CORROSION AMÉLIORÉES
Publication
Application
Priority
- KR 20200155838 A 20201119
- KR 2021011466 W 20210826
Abstract (en)
Disclosed is a ferritic stainless steel with improved strength, workability, and corrosion resistance, which may be applied to various industrial fields, such as washing machines, refrigerators, and all kinds of electric home appliances. An embodiment of the disclosed ferritic stainless steel comprises, in percent by weight (wt%), 0.0005 to 0.02% of C, 0.005 to 0.02% of N, 0.7 to 1.0% of Si, 16.0 to 17.0% of Cr, 0.05 to 0.3% of Ti, and the balance being Fe and inevitable impurities, wherein the ferritic stainless steel has a value of Formula (1) below satisfying 21 to25, a tensile strength of 470 MPa or more, and an elongation of 27% or more. 7*Si+CrIn Formula (1), Si and Cr represent the contents (wt%) of the respective elements.
IPC 8 full level
C22C 38/28 (2006.01); C22C 38/02 (2006.01)
CPC (source: EP KR US)
C21D 6/002 (2013.01 - US); C21D 6/008 (2013.01 - US); C21D 8/0205 (2013.01 - US); C21D 8/021 (2013.01 - US); C21D 8/0226 (2013.01 - US); C21D 8/0236 (2013.01 - US); C21D 8/0263 (2013.01 - US); C21D 9/0081 (2013.01 - US); C22C 38/001 (2013.01 - EP US); C22C 38/004 (2013.01 - EP US); C22C 38/02 (2013.01 - EP KR US); C22C 38/28 (2013.01 - EP KR US); C21D 2211/005 (2013.01 - KR US)
Citation (search report)
See references of WO 2022108058A1
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 4249622 A1 20230927; CN 116490628 A 20230725; JP 2023550410 A 20231201; KR 102424980 B1 20220725; KR 20220068743 A 20220526; US 2023416885 A1 20231228; WO 2022108058 A1 20220527
DOCDB simple family (application)
EP 21894831 A 20210826; CN 202180076851 A 20210826; JP 2023530070 A 20210826; KR 20200155838 A 20201119; KR 2021011466 W 20210826; US 202118034951 A 20210826