EP 3822384 B1 20230118 - AUSTENITIC STAINLESS STEEL HAVING IMPROVED STRENGTH
Title (en)
AUSTENITIC STAINLESS STEEL HAVING IMPROVED STRENGTH
Title (de)
AUSTENITISCHER EDELSTAHL MIT VERBESSERTER FESTIGKEIT
Title (fr)
ACIER INOXYDABLE AUSTÉNITIQUE AYANT UNE RÉSISTANCE AMÉLIORÉE
Publication
Application
Priority
- KR 20180094523 A 20180813
- KR 2019009977 W 20190808
Abstract (en)
[origin: EP3822384A1] An austenitic stainless steel with improved strength is disclosed. The austenitic stainless steel includes, in percent (%) by weight of the entire composition, C: 0.02 to 0.14%, Si: 0.2 to 0.6%, S: less than 0.01%, Mn: 2.0 to 4.5%, Ni: 2.5 to 5.0%, Cr: 19.0 to 22.0%, Cu: 1.0 to 3.0%, Mo: less than 1.0%, N: 0.25 to 0.40%, the remainder of iron (Fe) and other inevitable impurities, and the Solubility of Nitrogen in Liquid (SNL) value represented by the following equation (1) is equal to or greater than the content of N. SNL=−0.188−0.0423×C−0.0517×Si+0.012×Mn+0.0048×Ni+0.0252×Cr−0.00906×Cu+0.00021×MoHere, C, Si, Mn, Ni, Cr, Cu, and Mo mean the content (% by weight) of each element.
IPC 8 full level
C22C 38/58 (2006.01); C21D 1/26 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/18 (2006.01); C22C 38/20 (2006.01); C22C 38/22 (2006.01); C22C 38/32 (2006.01); C22C 38/38 (2006.01); C22C 38/40 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/54 (2006.01)
CPC (source: EP KR US)
C21D 1/26 (2013.01 - EP); C21D 6/004 (2013.01 - EP US); C21D 8/0205 (2013.01 - EP); C21D 8/0263 (2013.01 - EP); C22C 38/001 (2013.01 - EP KR US); C22C 38/002 (2013.01 - EP); C22C 38/02 (2013.01 - EP KR US); C22C 38/42 (2013.01 - EP KR US); C22C 38/44 (2013.01 - EP KR US); C22C 38/54 (2013.01 - EP); C22C 38/58 (2013.01 - EP KR US); C21D 2211/001 (2013.01 - EP KR 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
DOCDB simple family (publication)
EP 3822384 A1 20210519; EP 3822384 A4 20210901; EP 3822384 B1 20230118; EP 3822384 B8 20230222; CN 112789365 A 20210511; CN 112789365 B 20220927; FI 3822384 T3 20230320; KR 102160735 B1 20200928; KR 20200018995 A 20200221; US 2021292877 A1 20210923; WO 2020036370 A1 20200220
DOCDB simple family (application)
EP 19849274 A 20190808; CN 201980065501 A 20190808; FI 19849274 T 20190808; KR 20180094523 A 20180813; KR 2019009977 W 20190808; US 201917266011 A 20190808