EP 3221484 B1 20201230 - METHOD FOR MANUFACTURING A HIGH-STRENGTH AIR-HARDENING MULTIPHASE STEEL STRIP HAVING EXCELLENT PROCESSING PROPERTIES
Title (en)
METHOD FOR MANUFACTURING A HIGH-STRENGTH AIR-HARDENING MULTIPHASE STEEL STRIP HAVING EXCELLENT PROCESSING PROPERTIES
Title (de)
VERFAHREN ZUR HERSTELLUNG EINES HOCHFESTEN LUFTHÄRTENDEN MEHRPHASENSTAHLS MIT HERVORRAGENDEN VERARBEITUNGSEIGENSCHAFTEN
Title (fr)
PROCÉDÉ DE PRODUCTION D'UNE BANDE EN ACIER POLYPHASÉ, DURCISSANT À L'AIR, AYANT UNE HAUTE RÉSISTANCE ET AYANT D'EXCELLENTES PROPRIÉTÉS DE MISE EN OEUVRE
Publication
Application
Priority
- DE 102014017273 A 20141118
- DE 2015100467 W 20151104
Abstract (en)
[origin: WO2016078643A1] The invention relates to a high-strength air-hardenable multiphase steel which has excellent processing properties and consists of a composition defined in claim 1 and in which, in order to allow for a process window that is as large as possible for the continuous annealing of hot and cold strips from said steel, the combined content of Mn+Si+Cr is adjusted as follows in accordance with the strip thickness obtained: up to 1.00 mm: sum of Mn+Si+Cr ≥ 2.350 and ≤ 2.500 wt% more than 1.00 and up to 2.00 mm: sum of Mn+Si+Cr > 2.500 and ≤ 2.950 wt% more than 2.00 mm: sum of Mn+Si+Cr > 2.950 and ≤ 3.250 wt%.
IPC 8 full level
C21D 1/76 (2006.01); C21D 1/26 (2006.01); C21D 1/84 (2006.01); C21D 6/00 (2006.01); C21D 8/02 (2006.01); C21D 8/04 (2006.01); C21D 9/48 (2006.01); C21D 9/56 (2006.01); C21D 9/58 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C22C 38/32 (2006.01); C22C 38/38 (2006.01); C23C 2/02 (2006.01); C23C 2/06 (2006.01); C23C 2/26 (2006.01); C23C 2/40 (2006.01)
CPC (source: EP KR RU US)
C21D 1/26 (2013.01 - EP US); C21D 1/76 (2013.01 - EP US); C21D 1/84 (2013.01 - EP US); C21D 6/002 (2013.01 - EP US); C21D 6/005 (2013.01 - EP US); C21D 6/007 (2013.01 - EP US); C21D 8/02 (2013.01 - RU); C21D 8/0226 (2013.01 - KR US); C21D 8/0236 (2013.01 - KR US); C21D 8/0247 (2013.01 - EP US); C21D 8/0263 (2013.01 - KR); C21D 8/0273 (2013.01 - EP KR US); C21D 8/0447 (2013.01 - EP US); C21D 8/0473 (2013.01 - EP US); C21D 9/46 (2013.01 - KR RU US); C21D 9/48 (2013.01 - EP US); C21D 9/561 (2013.01 - EP KR US); C21D 9/562 (2013.01 - EP US); C21D 9/58 (2013.01 - EP US); C22C 38/001 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/02 (2013.01 - EP RU US); C22C 38/04 (2013.01 - EP KR RU US); C22C 38/06 (2013.01 - EP US); C22C 38/26 (2013.01 - EP KR RU US); C22C 38/28 (2013.01 - EP KR RU US); C22C 38/32 (2013.01 - EP KR RU US); C22C 38/38 (2013.01 - EP KR RU US); C22C 38/58 (2013.01 - US); C23C 2/0038 (2022.08 - EP KR RU US); C23C 2/02 (2013.01 - EP KR RU US); C23C 2/0224 (2022.08 - EP KR RU US); C23C 2/06 (2013.01 - EP US); C23C 2/26 (2013.01 - EP KR RU US); C23C 2/40 (2013.01 - EP US); C21D 2211/002 (2013.01 - EP US); C21D 2211/005 (2013.01 - EP US); C21D 2211/008 (2013.01 - EP US)
Citation (examination)
- DE 102011117572 A1 20120816 - SALZGITTER FLACHSTAHL GMBH [DE]
- EP 2426230 A1 20120307 - JFE STEEL CORP [JP]
- EP 2729590 A1 20140514 - TATA STEEL IJMUIDEN BV [NL]
- DE 102012013113 A1 20131224 - SALZGITTER FLACHSTAHL GMBH [DE]
- EP 2098600 A1 20090909 - JFE STEEL CORP [JP], et al
- WO 2013100485 A1 20130704 - POSCO [KR]
- WO 2011027900 A1 20110310 - NIPPON STEEL CORP [JP], et al
- EP 2799567 A1 20141105 - NIPPON STEEL & SUMITOMO METAL CORP [JP]
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 102014017273 A1 20160519; EP 3221484 A1 20170927; EP 3221484 B1 20201230; KR 20170084209 A 20170719; RU 2017120940 A 20181220; RU 2017120940 A3 20181220; RU 2707769 C2 20191129; US 10640855 B2 20200505; US 2018347018 A1 20181206; WO 2016078643 A1 20160526; WO 2016078643 A9 20160714
DOCDB simple family (application)
DE 102014017273 A 20141118; DE 2015100467 W 20151104; EP 15831216 A 20151104; KR 20177015845 A 20151104; RU 2017120940 A 20151104; US 201515527794 A 20151104