EP 0896072 B1 20021204 - Austenitic stainless steel with very low nickel content
Title (en)
Austenitic stainless steel with very low nickel content
Title (de)
Rostfreier austenitischer Stahl mit sehr niedrigem Nickelgehalt
Title (fr)
Acier inoxydable austénitique comportant une très faible teneur en nickel
Publication
Application
Priority
FR 9709617 A 19970729
Abstract (en)
[origin: EP0896072A1] A low nickel content austenitic stainless steel has the composition (by wt.) less than 0.1% C, 0.1-1% (exclusive) Si, 5-9% (exclusive) Mn, 0.1-2% (exclusive) Ni, 13-19% (exclusive) Cr, 1-4% (exclusive) Cu, 0.1-0.40% (exclusive) N, 5 x 10<-4>-50 x 10<-4>% (exclusive) B, less than 0.05% P and less than 0.01% S. Preferably, both the ferrite index (IF1) and the martensite stability index (IS) are less than 20, where IF1 = 0.034 x x<2> + 0.284 x x - 0.347 and IS = 0.0267 x y<2> + 0.4332 x y - 3.1459, in which x = 6.903 x Ä-6.998 + Cr% - 0.972 x (Ni% + 20.04C% + 21.31N% + 0.46Cu% + 0.08Mn%)Ü and y = 250.4 - 205.4C% - 101.4N% - 7.6Mn% - 12.1Ni% - 6.1Cr% - 13.3Cu%.
IPC 1-7
IPC 8 full level
C22C 38/00 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP US)
C21D 6/002 (2013.01 - EP US); C21D 6/005 (2013.01 - EP US); C22C 38/001 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/06 (2013.01 - EP US); C22C 38/42 (2013.01 - EP US); C22C 38/44 (2013.01 - EP US); C22C 38/46 (2013.01 - EP US); C22C 38/52 (2013.01 - EP US); C22C 38/58 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU NL PT SE
DOCDB simple family (publication)
EP 0896072 A1 19990210; EP 0896072 B1 20021204; AT E229094 T1 20021215; AU 742411 B2 20020103; AU 7733098 A 19990211; BR 9802669 A 19991130; CA 2243796 A1 19990129; CA 2243796 C 20100406; CN 1080774 C 20020313; CN 1213013 A 19990407; DE 69809853 D1 20030116; DE 69809853 T2 20030904; DK 0896072 T3 20030324; ES 2187905 T3 20030616; FR 2766843 A1 19990205; FR 2766843 B1 19990903; ID 20642 A 19990204; JP 4498481 B2 20100707; JP H1192885 A 19990406; KR 100554935 B1 20060421; KR 19990014209 A 19990225; PT 896072 E 20030430; TW 555870 B 20031001; US 6056917 A 20000502; ZA 986701 B 19990204
DOCDB simple family (application)
EP 98401734 A 19980709; AT 98401734 T 19980709; AU 7733098 A 19980721; BR 9802669 A 19980729; CA 2243796 A 19980724; CN 98117555 A 19980728; DE 69809853 T 19980709; DK 98401734 T 19980709; ES 98401734 T 19980709; FR 9709617 A 19970729; ID 981058 A 19980729; JP 21391098 A 19980729; KR 19980030126 A 19980727; PT 98401734 T 19980709; TW 87111854 A 19980721; US 12475098 A 19980729; ZA 986701 A 19980728