EP 1780293 B1 20130918 - Procedure for manufacturing of steel starting material by warm deforming
Title (en)
Procedure for manufacturing of steel starting material by warm deforming
Title (de)
Verfahren zum Herstellen von Vormaterial aus Stahl durch Warmverformen
Title (fr)
Procédure de fabrication de la matière brute de l'acier par déformer ä chaud
Publication
Application
Priority
DE 102005052069 A 20051028
Abstract (en)
[origin: EP1780293A2] Production of an initial material by thermal deformation involves subjecting a manganese-, chromium-, molybdenum-, nickel- and boron-containing steel (I), of specific composition, to controlled cooling from the thermal deformation temperature to give a martensitic-bainitic structure. Production of an initial material by thermal deformation involves subjecting a steel (I) to controlled cooling from the thermal deformation temperature to give a martensitic-bainitic structure. (I) contains (by weight, apart from iron and smelting impurities) 0.08-0.25% carbon, up to 1% silicon, 0.5-2.5% manganese, up to 0.035% phosphorus, up to 0.055% sulfur, 0.1-1.5% chromium, 0.1-0.5% molybdenum, 0.2-1.5% nickel, up to 0.06% aluminum, 0.0010-0.0060% boron, up to 0.040% titanium, up to 0.04% vanadium, up to 0.04% niobium, up to 0.5% copper and up to 0.010% nitrogen.
IPC 8 full level
C22C 38/02 (2006.01); C21D 1/00 (2006.01); C21D 1/20 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/54 (2006.01)
CPC (source: EP)
C21D 1/00 (2013.01); C21D 1/20 (2013.01); C21D 8/02 (2013.01); C21D 9/46 (2013.01); C22C 38/001 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/54 (2013.01)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1780293 A2 20070502; EP 1780293 A3 20070530; EP 1780293 B1 20130918; EP 1780293 B2 20171108; DE 102005052069 A1 20070503; DE 102005052069 B4 20150709; ES 2439900 T3 20140127; PL 1780293 T3 20140331
DOCDB simple family (application)
EP 06022284 A 20061025; DE 102005052069 A 20051028; ES 06022284 T 20061025; PL 06022284 T 20061025