EP 2547800 B1 20180103 - METHOD FOR PRODUCING WORKPIECES FROM LIGHTWEIGHT STEEL HAVING MATERIAL PROPERTIES THAT CAN BE ADJUSTED OVER THE WALL THICKNESS
Title (en)
METHOD FOR PRODUCING WORKPIECES FROM LIGHTWEIGHT STEEL HAVING MATERIAL PROPERTIES THAT CAN BE ADJUSTED OVER THE WALL THICKNESS
Title (de)
VERFAHREN ZUR HERSTELLUNG VON WERKSTÜCKEN AUS LEICHTBAUSTAHL MIT ÜBER DIE WANDDICKE EINSTELLBAREN WERKSTOFFEIGENSCHAFTEN
Title (fr)
PROCÉDÉ DE FABRICATION DE PIÈCES EN ACIER LÉGER DE CONSTRUCTION AYANT DES PROPRIÉTÉS DE MATÉRIAU AJUSTABLES SUIVANT L'ÉPAISSEUR DE PAROI
Publication
Application
Priority
- DE 102010034161 A 20100810
- DE 102010011991 A 20100316
- DE 2011000128 W 20110210
Abstract (en)
[origin: WO2011113404A1] The invention relates to a method for producing workpieces from an austenitic lightweight steel having material properties that can be adjusted over the wall thickness or strip thickness and having an alloy composition (in weight percent) comprising: C 0.2 to = 1.0; Al 0.05 to < 15.0; Si 0.05 to = 6.0; Mn 9.0 to < 30.0; remainder iron including common steel companion elements, with the optional addition of Cr, Cu, B, Ti, Zr, V, and Nb with Cr = 6.5; Cu = 4.0; Ti+Zr = 0.7; Nb+V = 0.5; B = 0.1. The method according to the invention is characterized in that the workpiece is subjected to a particular decarburizing annealing treatment in an oxidizing atmosphere.
IPC 8 full level
C21D 1/76 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C21D 9/42 (2006.01); C21D 9/46 (2006.01); C22C 38/04 (2006.01)
CPC (source: EP KR US)
C21D 1/76 (2013.01 - KR); C21D 6/005 (2013.01 - EP KR US); C21D 8/0226 (2013.01 - KR); C21D 8/0236 (2013.01 - KR); C21D 8/0257 (2013.01 - EP KR US); C21D 9/42 (2013.01 - KR); C21D 9/46 (2013.01 - KR); C22C 38/02 (2013.01 - EP KR US); C22C 38/04 (2013.01 - EP KR US); C22C 38/06 (2013.01 - EP KR US); C22C 38/18 (2013.01 - KR); C21D 1/76 (2013.01 - EP US); C21D 9/42 (2013.01 - EP US); C21D 9/46 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
DE 102010034161 A1 20110922; DE 102010034161 B4 20140102; EP 2547800 A1 20130123; EP 2547800 B1 20180103; KR 101707019 B1 20170215; KR 20130006461 A 20130116; RU 2012143967 A 20140427; RU 2544970 C2 20150320; US 2013048150 A1 20130228; US 9593392 B2 20170314; WO 2011113404 A1 20110922
DOCDB simple family (application)
DE 102010034161 A 20100810; DE 2011000128 W 20110210; EP 11715650 A 20110210; KR 20127025420 A 20110210; RU 2012143967 A 20110210; US 201113634980 A 20110210