EP 0225263 B1 19890503 - SHEET OR STRIP OF STAINLESS FERRITIC STEEL, PARTICULARLY FOR EXHAUST SYSTEMS
Title (en)
SHEET OR STRIP OF STAINLESS FERRITIC STEEL, PARTICULARLY FOR EXHAUST SYSTEMS
Publication
Application
Priority
FR 8516781 A 19851105
Abstract (en)
[origin: US4726853A] The invention concerns a strip or sheet of ferritic stainless steel of the following composition (% by weight): (C+N)<.060; Si<0.9; Mn<1; Cr=15 to 19; Mo<1; Ni<0.5; Ti<0.1; Cu<0.4; S<0.02; P<0.045; Zr=0.10 to 0.40, and 7(C+N)</=Zr</=7(C+N)+0.15; Nb=0.25 to 0.55, in non-combined form; Al=0.020 to 0.080; Fe=the balance, in which Al is essentially in solid solution. The process for the production of the sheet or strip comprises a final annealing operation which is carried out at between 980 DEG and 1020 DEG C., typically for 0.5 to 5 minutes at between 990 DEG and 1010 DEG C. The strip or sheet according to the invention is used for any application requiring an economic compromise in regard to ductility (sheet and welds), hot resistance and resistance to corrosion, for example in motor vehicle exhaust manifolds.
IPC 1-7
IPC 8 full level
C21D 8/00 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); F01N 13/16 (2010.01)
CPC (source: EP US)
C21D 8/0205 (2013.01 - EP US); C22C 38/26 (2013.01 - EP US); C22C 38/28 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0225263 A1 19870610; EP 0225263 B1 19890503; AT E42770 T1 19890515; AU 585083 B2 19890608; AU 6480286 A 19870507; BR 8605431 A 19870811; CA 1285791 C 19910709; DE 3663150 D1 19890608; DK 518886 A 19870506; DK 518886 D0 19861030; ES 2008092 B3 19890716; FR 2589482 A1 19870507; FR 2589482 B1 19871127; JP S62112757 A 19870523; NO 167307 B 19910715; NO 167307 C 19911023; NO 864394 D0 19861104; NO 864394 L 19870506; PT 83679 A 19861201; PT 83679 B 19890630; US 4726853 A 19880223; ZA 868359 B 19870624
DOCDB simple family (application)
EP 86420267 A 19861029; AT 86420267 T 19861029; AU 6480286 A 19861104; BR 8605431 A 19861104; CA 521827 A 19861030; DE 3663150 T 19861029; DK 518886 A 19861030; ES 86420267 T 19861029; FR 8516781 A 19851105; JP 26363986 A 19861105; NO 864394 A 19861104; PT 8367986 A 19861104; US 92350086 A 19861027; ZA 868359 A 19861103