EP 0057316 B1 19850403 - LOW INTERSTITIAL, CORROSION RESISTANT, WELDABLE FERRITIC STAINLESS STEEL AND PROCESS FOR THE MANUFACTURE THEREOF
Title (en)
LOW INTERSTITIAL, CORROSION RESISTANT, WELDABLE FERRITIC STAINLESS STEEL AND PROCESS FOR THE MANUFACTURE THEREOF
Publication
Application
Priority
US 22556681 A 19810116
Abstract (en)
[origin: EP0057316A1] A low interstitial, corrosion resistant, weldable ferritic stainless steel has an addition of between 0.05 and 0.50% by weight columbium and/or titanium to give the steel improved toughness when the maximum achievable cooling rate is limited. The steel consists of the following composition by weight percent: between 25.0 and 35% chromium, between 3.6 and 5.6% molybdenum, between 0.05 and 0.50% of columbium and/or titanium, less than 3.0% nickel, less than 2.0% manganese, less than 2.0% silicon, less than 0.5% aluminium, less than 0.5% copper, less than 0.050% phosphorous, less than 0.050% sulfur, less than 0.01% carbon, less than 0.02% nitrogen, the carbon plus nitrogen content being less than 0.025%, and the balance iron. A process is also disclosed which comprises air-cooling a steel having the above composition from the annealing temperature before cold rolling.
IPC 1-7
IPC 8 full level
C22C 38/00 (2006.01); C22C 38/08 (2006.01); C22C 38/22 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01)
CPC (source: EP)
C22C 38/22 (2013.01); C22C 38/26 (2013.01); C22C 38/28 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0057316 A1 19820811; EP 0057316 B1 19850403; AT E12527 T1 19850415; AU 7829481 A 19820722; BR 8200150 A 19821103; CA 1184403 A 19850326; DE 3169748 D1 19850509; ES 508364 A0 19830316; ES 8305049 A1 19830316; JP S57137455 A 19820825; KR 830007871 A 19831107; KR 880001356 B1 19880728; MX 156238 A 19880727
DOCDB simple family (application)
EP 81305667 A 19811202; AT 81305667 T 19811202; AU 7829481 A 19811204; BR 8200150 A 19820113; CA 391706 A 19811208; DE 3169748 T 19811202; ES 508364 A 19811228; JP 532482 A 19820116; KR 810004803 A 19811209; MX 19098182 A 19820114