EP 0370645 A1 19900530 - Improvements in and relating to hafnium-containing alloy steels.
Title (en)
Improvements in and relating to hafnium-containing alloy steels.
Title (de)
Hafniumhaltige legierte Stähle.
Title (fr)
Aciers alliés contenant de l'hafnium.
Publication
Application
Priority
GB 8825536 A 19881101
Abstract (en)
A steel alloy whose composition contains by weight: 0.5% maximum carbon; up to 3% silicon; up to 2% manganese; 0.010% maximum sulphur; 0.1% max phosphorous; 10 to 25% chromium; 1 to 10% aluminium 0.01 to 1% hafnium; 0.01 to 0.10% zirconium; 0.01 to 0.20% cerium and/or lanthanum up to 5% nickel; up to 2% titanium; up to 1% molybdenum; up to 1% copper; up tot 0.05% nitrogen; the balance being iron and incidental amounts of impurities.
IPC 1-7
IPC 8 full level
C22C 38/28 (2006.01)
CPC (source: EP)
C22C 38/28 (2013.01)
Citation (search report)
- [YD] EP 0035369 A1 19810909 - SHEFFIELD FORGEMASTERS [GB]
- [Y] GB 2070642 A 19810909 - FIRTH BROWN LTD
- [A] US 4018569 A 19770419 - CHANG DAVID R
Designated contracting state (EPC)
DE FR GB IT SE
DOCDB simple family (publication)
EP 0370645 A1 19900530; GB 2224288 A 19900502; GB 2224288 B 19920513; GB 8825536 D0 19881207
DOCDB simple family (application)
EP 89311327 A 19891101; GB 8825536 A 19881101