EP 2864517 B1 20200122 - HIGH-STRENGTH MULTIPHASE STEEL AND METHOD FOR PRODUCING A STRIP MADE FROM THIS STEEL WITH A MINIMUM TENSILE STRENGTH OF 580 MPA
Title (en)
HIGH-STRENGTH MULTIPHASE STEEL AND METHOD FOR PRODUCING A STRIP MADE FROM THIS STEEL WITH A MINIMUM TENSILE STRENGTH OF 580 MPA
Title (de)
HOCHFESTER MEHRPHASENSTAHL UND VERFAHREN ZUR HERSTELLUNG EINES BANDES AUS DIESEM STAHL MIT EINER MINDESTZUGFESTIGKEIT VON 580MPA
Title (fr)
ACIER MULTIPHASE À HAUTE RÉSISTANCE ET PROCÉDÉ POUR LA FABRICATION D'UNE BANDE FAITE DE CET ACIER PRÉSENTANT UNE RÉSISTANCE À LA TRACTION MINIMALE DE 580 MPA
Publication
Application
Priority
- DE 102012013113 A 20120622
- DE 2013000299 W 20130524
Abstract (en)
[origin: WO2013189474A1] The invention relates to a high-strength multiphase steel with minimum tensile strengths of 580 MPa, preferably a dual-phase structure for a cold-rolled or hot-rolled steel strip with improved forming properties, particularly for lightweight vehicle construction. The multiphase steel consists of the elements (contents in mass-%): C 0.075 to <= 0.105; Si 0.600 to <= 0.800; Mn 1.000 to <= 2.250; Cr 0.280 to <= 0.480; AI 0.010 to <= 0.060; P <= 0.020; N <= 0.0100; S <= 0.0150, remainder iron, including typical steel-accompanying elements not mentioned above, which are impurities introduced by smelting, with the condition that the Mn content is preferably <= 1.500% for strip thicknesses up to 1 mm, the Mn content is preferably <= 1.750% for strip thicknesses of 1 to 2 mm, and the Mn content is preferably >= 1.500% for strip thicknesses >= 2 mm.
IPC 8 full level
C21D 1/74 (2006.01); C21D 1/84 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C21D 9/52 (2006.01); C21D 11/00 (2006.01); C22C 1/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/18 (2006.01); C22C 38/22 (2006.01); C22C 38/26 (2006.01); C22C 38/38 (2006.01); C23C 2/06 (2006.01)
CPC (source: EP KR RU US)
C21D 1/74 (2013.01 - US); C21D 1/84 (2013.01 - US); C21D 6/002 (2013.01 - US); C21D 6/005 (2013.01 - US); C21D 6/008 (2013.01 - US); C21D 8/02 (2013.01 - RU); C21D 8/0205 (2013.01 - EP KR US); C21D 8/0226 (2013.01 - EP KR US); C21D 8/0236 (2013.01 - EP KR US); C21D 9/46 (2013.01 - RU); C21D 9/52 (2013.01 - EP US); C21D 11/00 (2013.01 - US); C22C 1/02 (2013.01 - EP US); C22C 38/001 (2013.01 - US); C22C 38/002 (2013.01 - US); C22C 38/02 (2013.01 - EP KR US); C22C 38/04 (2013.01 - EP KR US); C22C 38/06 (2013.01 - EP US); C22C 38/18 (2013.01 - EP RU US); C22C 38/22 (2013.01 - US); C22C 38/26 (2013.01 - US); C22C 38/38 (2013.01 - EP KR RU US); C23C 2/06 (2013.01 - RU US)
Citation (examination)
US 2010003161 A1 20100107 - USAMI AKIRA [JP], et al
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 102012013113 A1 20131224; EP 2864517 A1 20150429; EP 2864517 B1 20200122; KR 102079611 B1 20200407; KR 20150023567 A 20150305; RU 2015101783 A 20160820; RU 2627068 C2 20170803; US 2015337408 A1 20151126; WO 2013189474 A1 20131227
DOCDB simple family (application)
DE 102012013113 A 20120622; DE 2013000299 W 20130524; EP 13732078 A 20130524; KR 20147037113 A 20130524; RU 2015101783 A 20130524; US 201314409918 A 20130524