EP 3221478 A1 20170927 - HIGH-STRENGTH AIR-HARDENING MULTI-PHASE STEEL COMPRISING OUTSTANDING PROCESSING PROPERTIES AND METHOD FOR THE PRODUCTION OF A STEEL STRIP FROM SAID STEEL
Title (en)
HIGH-STRENGTH AIR-HARDENING MULTI-PHASE STEEL COMPRISING OUTSTANDING PROCESSING PROPERTIES AND METHOD FOR THE PRODUCTION OF A STEEL STRIP FROM SAID STEEL
Title (de)
HOCHFESTER LUFTHÄRTENDER MEHRPHASENSTAHL MIT HERVORRAGENDEN VERARBEITUNGSEIGENSCHAFTEN UND VERFAHREN ZUR HERSTELLUNG EINES BANDES AUS DIESEM STAHL
Title (fr)
ACIER MULTIPHASÉ À HAUTE RÉSISTANCE DURCISSANT À L'AIR QUI PRÉSENTE D'EXCELLENTES PROPRIÉTÉS DE TRAITEMENT ET PROCÉDÉ DE FABRICATION D'UNE BANDE À PARTIR DE CET ACIER
Publication
Application
Priority
- DE 102014017275 A 20141118
- DE 2015100459 W 20151102
Abstract (en)
[origin: WO2016078642A1] The invention relates to a high-strength air-hardening multi-phase steel which has a minimum tensile strength of 750 MPa and has outstanding processing properties, consisting of a composition defined in claim 1, in which, with a view to a possibly broad process window in the continuous annealing of warm or cold strips from said steel, according to the produced strip thickness, the total content of Mn+Si+Cr+Mo is adjusted as follows: up to 1.00 mm, total of Mn+Si+Cr+Mo ≥ 2.450 and ≤ 2.800 weight %; over 1.00 up to 2.00 mm, total of Mn+Si+Cr+Mo ≥ 2.600 and ≤ 3.150 weight %; over 2.00 mm, total of Mn+Si+Cr+Mo ≥ 3.000 and ≤ 3.450 weight %.
IPC 8 full level
C21D 8/02 (2006.01); C21D 9/52 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C22C 38/32 (2006.01); C22C 38/38 (2006.01); C22C 38/40 (2006.01); C22C 38/42 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/54 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP KR RU 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 8/02 (2013.01 - RU); C21D 8/0226 (2013.01 - EP US); C21D 8/0236 (2013.01 - EP US); C21D 8/0247 (2013.01 - EP KR US); C21D 8/0263 (2013.01 - EP US); C21D 9/46 (2013.01 - RU); C21D 9/52 (2013.01 - EP KR US); C21D 9/561 (2013.01 - EP US); C22C 38/001 (2013.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/02 (2013.01 - EP US); C22C 38/06 (2013.01 - EP US); C22C 38/22 (2013.01 - EP US); C22C 38/24 (2013.01 - EP US); C22C 38/26 (2013.01 - EP KR US); C22C 38/28 (2013.01 - EP KR US); C22C 38/32 (2013.01 - EP KR US); C22C 38/38 (2013.01 - EP KR US); C22C 38/40 (2013.01 - KR); C22C 38/42 (2013.01 - KR); C22C 38/48 (2013.01 - KR); C22C 38/58 (2013.01 - KR RU); C23C 2/0038 (2022.08 - EP KR RU US); C23C 2/06 (2013.01 - RU US); C23C 2/40 (2013.01 - US); C21D 2211/002 (2013.01 - EP US); C21D 2211/008 (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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
DE 102014017275 A1 20160519; EP 3221478 A1 20170927; EP 3221478 B1 20230329; KR 102503990 B1 20230224; KR 20170086062 A 20170725; RU 2017120972 A 20181219; RU 2017120972 A3 20181219; RU 2682913 C2 20190322; US 2018044759 A1 20180215; WO 2016078642 A1 20160526; WO 2016078642 A9 20160714
DOCDB simple family (application)
DE 102014017275 A 20141118; DE 2015100459 W 20151102; EP 15816077 A 20151102; KR 20177015844 A 20151102; RU 2017120972 A 20151102; US 201515528003 A 20151102