Global Patent Index - EP 3512968 A1

EP 3512968 A1 20190724 - METHOD FOR PRODUCING A FLAT STEEL PRODUCT MADE OF A MANGANESE-CONTAINING STEEL, AND SUCH A FLAT STEEL PRODUCT

Title (en)

METHOD FOR PRODUCING A FLAT STEEL PRODUCT MADE OF A MANGANESE-CONTAINING STEEL, AND SUCH A FLAT STEEL PRODUCT

Title (de)

VERFAHREN ZUR HERSTELLUNG EINES STAHLFLACHPRODUKTS AUS EINEM MANGANHALTIGEN STAHL UND EIN DERARTIGES STAHLFLACHPRODUKT

Title (fr)

PROCÉDÉ POUR FABRIQUER UN PRODUIT PLAT EN ACIER À PARTIR D'UN ACIER AU MANGANÈSE ET PRODUIT PLAT EN ACIER RÉSULTANT

Publication

EP 3512968 A1 20190724 (DE)

Application

EP 17768090 A 20170913

Priority

  • DE 102016117508 A 20160916
  • EP 2017072994 W 20170913

Abstract (en)

[origin: WO2018050683A1] The invention relates to a method for producing a flat steel product made of a medium manganese steel having a TRIP/TWIP effect. The aim of the invention is to achieve an improvement in the yield strength when a sufficient residual deformability of the produced flat steel product is obtained. This aim is achieved by the following steps: cold rolling a hot or cold strip, annealing the cold-rolled hot or cold strip at 500 to 840 °C for 1 minute to 24 hours, temper rolling or finishing the annealed hot or cold strip to form a flat steel product having a degree of deformability between 0.3 % and 60 %. The invention further relates to a flat steel product produced according to said method and to a use thereof.

IPC 8 full level

C21D 8/02 (2006.01); C22C 38/04 (2006.01)

CPC (source: EP KR RU US)

C21D 6/002 (2013.01 - EP US); C21D 6/005 (2013.01 - EP KR US); C21D 6/007 (2013.01 - EP US); C21D 6/008 (2013.01 - EP US); C21D 8/02 (2013.01 - RU); C21D 8/0205 (2013.01 - RU); C21D 8/0236 (2013.01 - EP KR US); C21D 8/0242 (2013.01 - EP KR RU US); C21D 8/0247 (2013.01 - RU); C21D 8/0268 (2013.01 - EP US); C21D 8/0273 (2013.01 - EP KR US); C21D 9/46 (2013.01 - EP KR RU US); C22C 38/00 (2013.01 - RU); C22C 38/001 (2013.01 - EP US); C22C 38/008 (2013.01 - EP US); C22C 38/02 (2013.01 - EP KR US); C22C 38/04 (2013.01 - EP KR RU US); C22C 38/06 (2013.01 - EP KR US); C22C 38/10 (2013.01 - EP KR US); C22C 38/12 (2013.01 - EP KR US); C22C 38/14 (2013.01 - EP KR US); C22C 38/16 (2013.01 - EP KR US); C22C 38/18 (2013.01 - EP KR US); C22C 38/20 (2013.01 - EP US); C22C 38/22 (2013.01 - EP US); C22C 38/24 (2013.01 - EP US); C22C 38/26 (2013.01 - EP US); C22C 38/28 (2013.01 - EP US); C22C 38/30 (2013.01 - EP US); C22C 38/32 (2013.01 - EP US); C22C 38/38 (2013.01 - EP US); C22C 38/60 (2013.01 - EP KR US); C21D 8/0205 (2013.01 - EP US); C21D 2201/02 (2013.01 - EP US); C21D 2211/001 (2013.01 - EP US); C21D 2211/008 (2013.01 - EP US)

Citation (search report)

See references of WO 2018050683A1

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)

WO 2018050683 A1 20180322; WO 2018050683 A8 20180511; DE 102016117508 A1 20180322; DE 102016117508 B4 20191010; EP 3512968 A1 20190724; EP 3512968 B1 20210825; KR 102298180 B1 20210907; KR 20190052683 A 20190516; RU 2734216 C1 20201013; RU 2734216 C9 20201112; US 11261503 B2 20220301; US 2019203311 A1 20190704

DOCDB simple family (application)

EP 2017072994 W 20170913; DE 102016117508 A 20160916; EP 17768090 A 20170913; KR 20197009397 A 20170913; RU 2019107482 A 20170913; US 201716333947 A 20170913