EP 1329532 A2 20030723 - Ferritic heat-resistant steel and method for producing it
Title (en)
Ferritic heat-resistant steel and method for producing it
Title (de)
Ferritischer,wärmebeständiger Stahl und Verfahren zur Herstellung
Title (fr)
Acier ferritique réfractaire et procédé de fabrication
Publication
Application
Priority
- EP 98307629 A 19980921
- JP 25647997 A 19970922
- JP 25648097 A 19970922
- JP 25648197 A 19970922
Abstract (en)
The invention provides a ferritic heat-resistant steel having excellent high-temperature oxidation resistance, especially excellent steam oxidation-resistant characteristics. In high-Cr ferritic heat-resistant steel, ultra-fine oxide particles having a size of not larger than 1 µm are formed just below the oxide films and formed on the steel base, whereby the adhesiveness between the films and the base is enhanced. The ferritic heat-resistant steel contains Cr in an amount of from 8.0 to 13.0 % by weight, and at least one of Rh and Ir in a total amount of from 0.3 to 5.0 % by weight.
IPC 1-7
IPC 8 full level
C21D 1/18 (2006.01); C21D 8/00 (2006.01); C22C 38/00 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/26 (2006.01); C21D 1/28 (2006.01); C21D 8/02 (2006.01)
CPC (source: EP US)
C21D 1/18 (2013.01 - EP US); C21D 6/002 (2013.01 - EP US); C21D 8/005 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/005 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/22 (2013.01 - EP US); C22C 38/24 (2013.01 - EP US); C22C 38/26 (2013.01 - EP US); C22C 38/28 (2013.01 - EP US); F28F 19/06 (2013.01 - EP US); C21D 1/28 (2013.01 - EP US); C21D 8/0205 (2013.01 - EP US); C21D 2211/005 (2013.01 - EP US)
Designated contracting state (EPC)
BE DE
DOCDB simple family (publication)
EP 0903421 A1 19990324; EP 0903421 B1 20041124; DE 69827729 D1 20041230; DE 69827729 T2 20050428; DE 69829012 D1 20050317; DE 69829012 T2 20050707; DE 69837055 D1 20070322; DE 69837055 T2 20071108; EP 1329531 A2 20030723; EP 1329531 A3 20030730; EP 1329531 B1 20070207; EP 1329531 B8 20070919; EP 1329532 A2 20030723; EP 1329532 A3 20030730; EP 1329532 B1 20050209; EP 1329532 B8 20070919; US 2002011285 A1 20020131; US 2003127163 A1 20030710; US 2004060621 A1 20040401; US 2006054253 A1 20060316
DOCDB simple family (application)
EP 98307629 A 19980921; DE 69827729 T 19980921; DE 69829012 T 19980921; DE 69837055 T 19980921; EP 03007332 A 19980921; EP 03007333 A 19980921; US 15739298 A 19980921; US 19903102 A 20020722; US 25049205 A 20051017; US 67387903 A 20030930