EP 1103626 B1 20021204 - HIGH Cr FERRITIC HEAT RESISTANCE STEEL
Title (en)
HIGH Cr FERRITIC HEAT RESISTANCE STEEL
Title (de)
HOCHCHROMHALTIGER, WÄRMEBESTÄNDIGER, FERITISCHER STAHL
Title (fr)
ACIER FERRITIQUE THERMORESISTANT A TENEUR ELEVEE EN Cr
Publication
Application
Priority
- JP 9903231 W 19990616
- JP 19308498 A 19980708
Abstract (en)
[origin: WO0003050A1] A Cr ferritic heat resistance steel containing 0.02 to 0.15 % of C, 0.05 to 1.5 % of Mn, 0.03 % or less of P, 0.015 % or less of S, 8 to 13 % of Cr, 1.5 to 4 % of W, 2 to 6 % of Co, 0.1 to 0.5 % of V, 0.01 to 0.15 % of Ta, 0.01 to 0.15 % of Nb, 0.001 to 0.2 % of Nd, less than 0.02 % of N, 0.0005 to 0.02 % of B, 0.001 to 0.05 % of Al, with the proviso that the contents of Nb and N satisfy the formula, which is excellent in the creep strength under a condition of a high temperature and long duration and in toughness, and can be used under an extra supercritical pressure condition of 650 DEG C or higher and 300 atm.
IPC 1-7
C22C 38/32; C22C 38/18; C22C 38/22; C22C 38/24; C22C 38/26; C22C 38/30; C22C 38/00
IPC 8 full level
C22C 38/00 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/26 (2006.01); C22C 38/30 (2006.01); C22C 38/32 (2006.01); C21D 8/02 (2006.01)
CPC (source: EP US)
C22C 38/002 (2013.01 - EP US); C22C 38/005 (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 38/30 (2013.01 - EP US); C22C 38/32 (2013.01 - EP US); C21D 8/0205 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 0003050 A1 20000120; DE 69904336 D1 20030116; DE 69904336 T2 20030821; EP 1103626 A1 20010530; EP 1103626 A4 20020116; EP 1103626 B1 20021204; JP 2000026940 A 20000125; JP 3982069 B2 20070926; US 2002020473 A1 20020221
DOCDB simple family (application)
JP 9903231 W 19990616; DE 69904336 T 19990616; EP 99925355 A 19990616; JP 19308498 A 19980708; US 75405001 A 20010105