(19)
(11) EP 3 239 329 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
20.11.2019 Bulletin 2019/47

(45) Mention of the grant of the patent:
09.10.2019 Bulletin 2019/41

(21) Application number: 15873530.8

(22) Date of filing: 11.12.2015
(51) International Patent Classification (IPC): 
C22C 38/04(2006.01)
C22C 38/12(2006.01)
C22C 38/00(2006.01)
C21D 6/00(2006.01)
C22C 38/08(2006.01)
C21D 8/02(2006.01)
C22C 38/14(2006.01)
(86) International application number:
PCT/KR2015/013557
(87) International publication number:
WO 2016/105003 (30.06.2016 Gazette 2016/26)

(54)

STRUCTURAL ULTRA-THICK STEEL HAVING EXCELLENT RESISTANCE TO BRITTLE CRACK PROPAGATION, AND PRODUCTION METHOD THEREFOR

ULTRADICKER BAUSTAHL MIT AUSGEZEICHNETER BESTÄNDIGKEIT GEGEN SPRÖDRISSAUSBREITUNG UND HERSTELLUNGSVERFAHREN DAFÜR

ACIER DE STRUCTURE ULTRA ÉPAIS PRÉSENTANT UNE EXCELLENTE RÉSISTANCE À LA PROPAGATION DE FISSURES FRAGILES ET SON PROCÉDÉ DE PRODUCTION


(84) Designated Contracting States:
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

(30) Priority: 24.12.2014 KR 20140188465

(43) Date of publication of application:
01.11.2017 Bulletin 2017/44

(73) Proprietor: POSCO
Gyeongsangbuk-do 37859 (KR)

(72) Inventors:
  • LEE, Hak-Cheol
    Pohang-si Gyeongsangbuk-do 37877 (KR)
  • JANG, Sung-Ho
    Pohang-si Gyeongsangbuk-do 37877 (KR)

(74) Representative: Potter Clarkson 
The Belgrave Centre Talbot Street
Nottingham NG1 5GG
Nottingham NG1 5GG (GB)


(56) References cited: : 
EP-B1- 1 025 272
WO-A1-2014/132627
JP-A- H08 199 293
JP-A- 2013 221 190
KR-A- 20110 075 321
WO-A1-99/32671
WO-A2-00/40764
JP-A- 2010 001 520
JP-B2- H 064 903
KR-A- 20140 113 975
   
       
    Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).