EP 2753725 B1 20150916 - LOW DENSITY HIGH STRENGTH STEEL AND METHOD FOR PRODUCING SAID STEEL

Title (en)

LOW DENSITY HIGH STRENGTH STEEL AND METHOD FOR PRODUCING SAID STEEL

Title (de)

HOCHFESTER STAHL VON GERINGER DICHTE UND VERFAHREN ZUR HERSTELLUNG DIESES STAHLS

Title (fr)

ACIER À HAUTE RÉSISTANCE, À FAIBLE DENSITÉ, ET PROCÉDÉ DE FABRICATION DUDIT ACIER

Publication

EP 2753725 B1 20150916 (EN)

Application

EP 12704434 A 20120221

Priority

EP 11180669 A 20110909
EP 2012052920 W 20120221
EP 12704434 A 20120221

Abstract (en)

[origin: WO2013034317A1] The present invention relates to a low density high strength steel sheet comprising 0.15% to 0.25% C, 2.5% to 4% Mn, 0.02% or less P, 0. 015% or less S, 6% to 9% Al and 0.01% or less N, the balance being iron and inevitable impurities, wherein 1.7.(Mn-Al) + 52.7.C is at least 3 and at most 4.5 and to a method of producing said low density and high strength steel sheet.

IPC 8 full level

C22C 38/04 (2006.01); C21D 8/02 (2006.01); C22B 23/02 (2006.01); C22C 38/06 (2006.01)

CPC (source: EP US)

C21D 8/0226 (2013.01 - EP US); C21D 8/0236 (2013.01 - EP US); C21D 8/0263 (2013.01 - US); C21D 8/0415 (2013.01 - EP US); C21D 8/0426 (2013.01 - EP US); C21D 8/0436 (2013.01 - EP US); C21D 8/0473 (2013.01 - EP US); C21D 9/46 (2013.01 - US); C22C 38/001 (2013.01 - US); C22C 38/002 (2013.01 - US); C22C 38/02 (2013.01 - US); C22C 38/04 (2013.01 - EP US); C22C 38/06 (2013.01 - EP US); C22C 38/08 (2013.01 - US); C22C 38/12 (2013.01 - US); C22C 38/14 (2013.01 - US); C22C 38/16 (2013.01 - US); C22C 38/20 (2013.01 - US); C22C 38/22 (2013.01 - US); C22C 38/28 (2013.01 - US); C22C 38/32 (2013.01 - US); C22C 38/34 (2013.01 - US); C22C 38/38 (2013.01 - US); C22C 38/42 (2013.01 - US); C22C 38/44 (2013.01 - US); C22C 38/50 (2013.01 - US); C22C 38/54 (2013.01 - US); C22C 38/58 (2013.01 - US); C23C 2/02 (2013.01 - EP US); C23C 2/0224 (2022.08 - EP US); C23C 2/024 (2022.08 - EP US); C25D 5/36 (2013.01 - US); C21D 1/673 (2013.01 - EP US); C21D 2211/001 (2013.01 - EP US); C21D 2211/004 (2013.01 - EP US); C21D 2211/005 (2013.01 - EP US); Y10T 428/12757 (2015.01 - EP US); Y10T 428/12799 (2015.01 - EP US)

Citation (opposition)

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)

WO 2013034317 A1 20130314; CN 103827338 A 20140528; CN 103827338 B 20170215; EP 2753725 A1 20140716; EP 2753725 B1 20150916; IN 2603CHN2014 A 20150807; US 2014363694 A1 20141211

DOCDB simple family (application)

EP 2012052920 W 20120221; CN 201280043488 A 20120221; EP 12704434 A 20120221; IN 2603CHN2014 A 20140405; US 201214241644 A 20120221