EP 1436440 B1 20050727 - FERRITIC STAINLESS STEEL AND USE THEREOF IN THE MANUFACTURE FOR HIGH TEMPERATURE RESISTANT PRODUCTS
Title (en)
FERRITIC STAINLESS STEEL AND USE THEREOF IN THE MANUFACTURE FOR HIGH TEMPERATURE RESISTANT PRODUCTS
Title (de)
FERRITISCHER ROSTFREIER STAHL UND DESSEN VERWENDUNG ZUM HERSTELLEN VON HOCHTEMPERATURBESTÄNDIGEN PRODUKTEN
Title (fr)
ACIER FERRITIQUE ET UTILISATION DE CE DERNIER DANS LA FABRICATION DE PRODUITS RESISTANT AUX HAUTES TEMPERATURES
Publication
Application
Priority
- IT 0200613 W 20020926
- IT RM20010584 A 20010926
Abstract (en)
[origin: WO03027343A1] Ferritic stainless steel, comprising the following Chemical elements expressed in percentage by weight: - Cr 14.0-20.0 - Al 0.50-1.50 - Zr 0.10-0.50 - Si 0.30-1.50 - Ti 0.10-0.35 - Nb 0.25-0.55- C < 0.035 - N < 0.035 provided that the content of Ti, Nb, C and N satisfy the following relation: %Ti + %Nb/1.94 > 9 (%C + %N) and substantially iron q. s. to 100. This steel may also comprise Yttrium and/or rare earth elements in a percentage by weight comprised in the range 0.10-0.30. The invention also encompasses products manufacturable with the steel of the invention, in particular vehicle exhaust manifold systems. Figure (I) shows a cyclic oxidation test carried out at 1000°C on samples having the composition of an embodiment of the steel according to the invention.
IPC 1-7
IPC 8 full level
C21D 6/00 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C21D 8/02 (2006.01)
CPC (source: EP US)
C21D 6/002 (2013.01 - EP US); C22C 38/005 (2013.01 - EP US); C22C 38/02 (2013.01 - EP US); C22C 38/06 (2013.01 - EP US); C22C 38/26 (2013.01 - EP US); C22C 38/28 (2013.01 - EP US); C21D 8/0205 (2013.01 - EP US); C21D 2211/005 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
WO 03027343 A1 20030403; AT E300627 T1 20050815; CA 2461869 A1 20030403; CN 1274864 C 20060913; CN 1575347 A 20050202; DE 60205269 D1 20050901; DE 60205269 T2 20060524; EP 1436440 A1 20040714; EP 1436440 B1 20050727; ES 2248625 T3 20060316; IT RM20010584 A0 20010926; IT RM20010584 A1 20030326; US 2004265162 A1 20041230
DOCDB simple family (application)
IT 0200613 W 20020926; AT 02783530 T 20020926; CA 2461869 A 20020926; CN 02821307 A 20020926; DE 60205269 T 20020926; EP 02783530 A 20020926; ES 02783530 T 20020926; IT RM20010584 A 20010926; US 49104404 A 20040820