EP 0754774 A1 19970122 - Steam turbine rotor materials for high-temperature applications
Title (en)
Steam turbine rotor materials for high-temperature applications
Title (de)
Hochtemperaturwerkstoffe für Dampfturbinenrotor
Title (fr)
Matériau à applications à hautes températures pour rotor de turbine à vapeur
Publication
Application
Priority
JP 17976995 A 19950717
Abstract (en)
A steam turbine rotor material for high-temperature applications consisting essentially of, on a weight percentage basis, 0.05 to 0.13% carbon, 0.005 to 0.1% silicon, 0.01 to 0.5% manganese, 9 to 12% chromium, 0.1 to 0.3% vanadium, 0.01 to 0.15% niobium and/or tantalum, 0.01 to 0.1% nitrogen, 0.05 to 0.5% molybdenum, 1.5 to 3% tungsten, 1 to 4% cobalt, and the balance being iron and incidental impurities.
IPC 1-7
C22C 38/30; C22C 38/32; C22C 38/22; C22C 38/24; C22C 38/26; C22C 38/00
IPC 8 full level
F01D 5/02 (2006.01); C22C 38/00 (2006.01); C22C 38/22 (2006.01); C22C 38/30 (2006.01); C22C 38/32 (2006.01); F01D 25/00 (2006.01)
CPC (source: EP)
C22C 38/001 (2013.01); C22C 38/22 (2013.01); C22C 38/30 (2013.01)
Citation (search report)
- [XP] EP 0691416 A1 19960110 - JAPAN STEEL WORKS LTD [JP], et al
- [XP] WO 9601334 A1 19960118 - KANSAI ELECTRIC POWER CO [JP], et al
- [Y] EP 0384433 A1 19900829 - HITACHI METALS LTD [JP]
- [YD] EP 0210122 A1 19870128 - MITSUBISHI HEAVY IND LTD [JP], et al
- [X] DATABASE WPI Section Ch Week 9306, Derwent World Patents Index; Class M27, AN 93-048175, XP002016600
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0754774 A1 19970122; JP 3310825 B2 20020805; JP H0931600 A 19970204
DOCDB simple family (application)
EP 96103067 A 19960229; JP 17976995 A 19950717