EP 1270754 B1 20120425 - Two-step aging treatment for Ni-Cr-Mo alloys
Title (en)
Two-step aging treatment for Ni-Cr-Mo alloys
Title (de)
Zweistufiges Alterungsverfahren für Ni-Cr-Mo Legierungen
Title (fr)
Procédé de vieillissement en deux étapes d'alliages Ni-Cr-Mo
Publication
Application
Priority
- US 89417901 A 20010628
- US 16565002 A 20020607
Abstract (en)
[origin: EP1270754A1] A two step heat treatment for Ni-Cr-Mo alloys containing from 12% to 23.5% chromium provides higher yield strength, high tensile strength and other mechanical properties comparable to those observed in similar alloys age-hardened according to current practices. This treatment is done over a total time of not more than 50 hours. However, the treatment works for only those alloys having alloying elements present in amounts according to an equation here disclosed.
IPC 8 full level
C22C 19/05 (2006.01); C22C 19/03 (2006.01); C22F 1/00 (2006.01); C22F 1/10 (2006.01)
CPC (source: EP KR)
C22C 19/05 (2013.01 - KR); C22C 19/055 (2013.01 - EP); C22C 19/056 (2013.01 - EP); C22C 19/058 (2013.01 - EP); C22F 1/10 (2013.01 - EP)
Designated contracting state (EPC)
AT DE FR IT SE
DOCDB simple family (publication)
EP 1270754 A1 20030102; EP 1270754 B1 20120425; AU 5064502 A 20030102; AU 785025 B2 20060824; CA 2391903 A1 20021228; CA 2391903 C 20090929; CN 1246490 C 20060322; CN 1412331 A 20030423; GB 0214712 D0 20020807; GB 2377944 A 20030129; GB 2377944 A9 20030129; GB 2377944 A9 20030313; GB 2377944 B 20050323; JP 2003027163 A 20030129; JP 4206229 B2 20090107; KR 20030003017 A 20030109; MX PA02006453 A 20040505; TW I224146 B 20041121
DOCDB simple family (application)
EP 02014216 A 20020626; AU 5064502 A 20020626; CA 2391903 A 20020627; CN 02147208 A 20020627; GB 0214712 A 20020626; JP 2002190729 A 20020628; KR 20020035498 A 20020625; MX PA02006453 A 20020627; TW 91114334 A 20020628