EP 1024204 A2 20000802 - Method of manufacturing a high Mn non-magnetic steel sheet for cryogenic temperature use
Title (en)
Method of manufacturing a high Mn non-magnetic steel sheet for cryogenic temperature use
Title (de)
Verfahren zum Herstellen eines nicht-magnetischen, hoch mangan enthaltenden Stahlblechs für kryogene Verwendungen
Title (fr)
Procédé de fabrication d'un acier non-magnétique à haute teneur en manganèse pour applications cryogéniques
Publication
Application
Priority
JP 1791299 A 19990127
Abstract (en)
A method of manufacturing a high Mn non-magnetic steel sheet having low permeability at a cryogenic temperature suitable for use in large scale particle accelerators, the method comprises rolling a steel material containing, on the wt% basis, from 0.05 to 0.18% of C, from 26.0 to 30.0% of Mn, from 5.0 to 10.0% of Cr, 0.05 to 0.15% of N and, optionally, from 0.50 to 5.0% of Ni, in which a rolling start temperature is from 1050 to 1200 DEG C and a rolling end temperature is from 700 to 1000 DEG C. Further, a cold rolled sheet is annealed at an annealing temperature for cold rolled sheet of from 1050 to 1200 DEG C and cooled after annealing, the annealed sheet being preferably applied with temper rolling under control for the strength by varying a draft ratio. <IMAGE>
IPC 1-7
IPC 8 full level
C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/38 (2006.01); C22C 38/58 (2006.01); H01F 1/00 (2006.01)
CPC (source: EP)
C21D 8/0205 (2013.01); C22C 38/001 (2013.01); C22C 38/38 (2013.01); C22C 38/58 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C21D 8/0263 (2013.01); C21D 8/0273 (2013.01)
Designated contracting state (EPC)
DE FR GB SE
DOCDB simple family (publication)
EP 1024204 A2 20000802; EP 1024204 A3 20040128; JP 2000212646 A 20000802; JP 3864600 B2 20070110
DOCDB simple family (application)
EP 00101428 A 20000125; JP 1791299 A 19990127