EP 3325678 A1 20180530 - FORMABLE LIGHTWEIGHT STEEL WITH IMPROVED MECHANICAL PROPERTIES AND METHOD FOR PRODUCING SEMI-FINISHED PRODUCTS FROM SAID STEEL
Title (en)
FORMABLE LIGHTWEIGHT STEEL WITH IMPROVED MECHANICAL PROPERTIES AND METHOD FOR PRODUCING SEMI-FINISHED PRODUCTS FROM SAID STEEL
Title (de)
UMFORMBARER LEICHTBAUSTAHL MIT VERBESSERTEN MECHANISCHEN EIGENSCHAFTEN UND VERFAHREN ZUR HERSTELLUNG VON HALBZEUG AUS DIESEM STAHL
Title (fr)
ACIER LÉGER DEFORMABLE DE CONSTRUCTION PRÉSENTANT DES PROPRIÉTÉS MÉCANIQUES AMÉLIORÉES ET PROCÉDÉ DE FABRICATION DE PRODUIT SEMI-FINI À PARTIR DE CET ACIER
Publication
Application
Priority
- DE 102015111866 A 20150722
- EP 2016067347 W 20160720
Abstract (en)
[origin: WO2017013193A1] The invention relates to a formable lightweight steel having improved mechanical properties and high resistance to delayed hydrogen-induced cracking and hydrogen embrittlement, comprising the following elements (in wt.%): C 0.02 to ≤1.0; Mn 3 to 30; Si ≤4; P max. 0.1; S max. 0.1; N max. 0.03; Sb 0.003 to 0.8, particularly advantageously to 0.5, as well as at least one or more of the following carbide-forming elements in the specified proportions (in wt.%): Al ≤15; Cr >0.1 to 8; Mo 0.05 to 2; Ti 0.01 to 2; V 0.005 to 1; Nb 0.00 to 1; W 0.005 to 1; Zr 0.001 to 0.3; with the remainder consisting of iron including the usual steel-accompanying elements, with the optional addition of the following elements in wt.%: Ni max. 5, Co max. 10, Ca max. 0.005, B max. 0.01 and Cu 0.05 to 2. The invention also relates to a method for producing said lightweight steel.
IPC 8 full level
C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/18 (2006.01); C22C 38/34 (2006.01); C22C 38/38 (2006.01); C22C 38/60 (2006.01)
CPC (source: EP KR US)
C21D 1/26 (2013.01 - EP US); C21D 6/002 (2013.01 - EP US); C21D 6/005 (2013.01 - EP US); C21D 6/008 (2013.01 - EP US); C21D 8/0205 (2013.01 - EP US); C21D 8/0226 (2013.01 - EP KR US); C21D 8/0231 (2013.01 - KR); C21D 8/0236 (2013.01 - EP KR US); C21D 8/0263 (2013.01 - EP US); C21D 8/0273 (2013.01 - KR); C21D 9/46 (2013.01 - EP KR US); C21D 9/52 (2013.01 - EP US); C22C 38/02 (2013.01 - EP KR US); C22C 38/06 (2013.01 - EP KR US); C22C 38/24 (2013.01 - EP KR US); C22C 38/26 (2013.01 - EP US); C22C 38/38 (2013.01 - EP KR US); C22C 38/60 (2013.01 - KR); C21D 8/0231 (2013.01 - EP US); C21D 8/0273 (2013.01 - EP US)
Citation (search report)
See references of WO 2017013193A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102015111866 A1 20170126; EP 3325678 A1 20180530; EP 3325678 B1 20210421; KR 102096190 B1 20200402; KR 20180033202 A 20180402; RU 2691436 C1 20190613; US 2018216207 A1 20180802; WO 2017013193 A1 20170126
DOCDB simple family (application)
DE 102015111866 A 20150722; EP 16750113 A 20160720; EP 2016067347 W 20160720; KR 20187003165 A 20160720; RU 2018105926 A 20160720; US 201615746317 A 20160720