EP 3221484 A1 20170927 - HIGH-STRENGTH AIR-HARDENING MULTIPHASE STEEL HAVING EXCELLENT PROCESSING PROPERTIES, AND METHOD FOR MANUFACTURING A STRIP OF SAID STEEL
Title (en)
HIGH-STRENGTH AIR-HARDENING MULTIPHASE STEEL HAVING EXCELLENT PROCESSING PROPERTIES, AND METHOD FOR MANUFACTURING A STRIP OF SAID STEEL
Title (de)
HOCHFESTER LUFTHÄRTENDER MEHRPHASENSTAHL MIT HERVORRAGENDEN VERARBEITUNGSEIGENSCHAFTEN UND VERFAHREN ZUR HERSTELLUNG EINES BANDES AUS DIESEM STAHL
Title (fr)
ACIER POLYPHASÉ, TREMPÉ À L'AIR ET À HAUTE RÉSISTANCE, AYANT D'EXCELLENTES PROPRIÉTÉS DE MISE EN OEUVRE ET PROCÉDÉ DE PRODUCTION D'UNE BANDE AVEC CET ACIER
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
C22C 38/02 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/04 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C22C 38/32 (2006.01); C22C 38/38 (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 (search report)
See references of WO 2016078643A1
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 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