EP 1398390 B1 20060118 - Steel with a very fine ferritic and martensitic microstructure having a high tensile strength
Title (en)
Steel with a very fine ferritic and martensitic microstructure having a high tensile strength
Title (de)
Ferritisch/martensitischer Stahl mit hoher Festigkeit und sehr feinem Gefüge
Title (fr)
Acier ferritique-martensitique possédant une resistance élevée ayant une fine microstructure
Publication
Application
Priority
EP 02020294 A 20020911
Abstract (en)
[origin: EP1398390A1] The following composition (wt. %) is cast into optionally flat ingots: C 0.05-2, Si up to 0.9, P up to 0.06, Mn 0.6-1.2, Al up to 0.05%, Cr 0.02-0.6, Nb up to 0.08%, Ti up to 0.08%, V up to 0.08%, Mo up to 0.4%, Cu up to 1%, Ni up to 1%, remainder Fe and inevitable impurities. The ingot is heated to hot-rolling temperature of 750-950 degrees C. The hot sheet is cooled to normal temperatures, up to 250 degrees C, at the rate of at least 10 K/s, for winding into rolls. An Independent claim is included for corresponding sheet.
IPC 8 full level
CPC (source: EP)
C21D 8/0226 (2013.01); C21D 8/0263 (2013.01); C21D 2201/00 (2013.01); C21D 2211/005 (2013.01); C21D 2211/008 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
EP 1398390 A1 20040317; EP 1398390 B1 20060118; AT E316157 T1 20060215; DE 50205631 D1 20060406; ES 2256378 T3 20060716
DOCDB simple family (application)
EP 02020294 A 20020911; AT 02020294 T 20020911; DE 50205631 T 20020911; ES 02020294 T 20020911