EP 4211279 A1 20230719 - HOT-ROLLED FLAT STEEL PRODUCT AND METHOD FOR PRODUCING A HOT-ROLLED FLAT STEEL PRODUCT
Title (en)
HOT-ROLLED FLAT STEEL PRODUCT AND METHOD FOR PRODUCING A HOT-ROLLED FLAT STEEL PRODUCT
Title (de)
WARMGEWALZTES STAHLFLACHPRODUKT UND VERFAHREN ZUR HERSTELLUNG EINES WARMGEWALZTEN STAHLFLACHPRODUKTS
Title (fr)
PRODUIT PLAT EN ACIER LAMINÉ À CHAUD ET PROCÉDÉ DE PRODUCTION D'UN PRODUIT PLAT EN ACIER LAMINÉ À CHAUD
Publication
Application
Priority
- EP 20194839 A 20200907
- EP 2021074473 W 20210906
Abstract (en)
[origin: WO2022049282A1] The invention relates to a hot-rolled flat steel product, which consists of a steel comprising 0.03-0.65 wt.% carbon, 0.1-2.5 wt.% manganese, optional elements, the rest being iron and unavoidable impurities. The flat steel product has a yield strength of at least 680 MPa. Moreover, the residual compressive stress on at least one surface of the flat steel product is greater than 2/12 of the yield strength. Furthermore, the invention relates to a method for producing such a flat steel product, using a special straightening process.
IPC 8 full level
C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (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)
C21D 8/0226 (2013.01); C21D 8/0242 (2013.01); C21D 8/0263 (2013.01); C21D 9/46 (2013.01); C22C 38/001 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/54 (2013.01); C22C 38/58 (2013.01); C21D 2211/002 (2013.01); C21D 2211/008 (2013.01)
Citation (search report)
See references of WO 2022049282A1
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
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 3964592 A1 20220309; EP 4211279 A1 20230719; WO 2022049282 A1 20220310
DOCDB simple family (application)
EP 20194839 A 20200907; EP 2021074473 W 20210906; EP 21772797 A 20210906