(19)
(11) EP 2 519 654 A2

(12)

(88) Date of publication A3:
13.10.2011

(43) Date of publication:
07.11.2012 Bulletin 2012/45

(21) Application number: 10841192.7

(22) Date of filing: 23.12.2010
(51) International Patent Classification (IPC): 
C21D 8/06(2006.01)
C22C 38/12(2006.01)
C22C 38/00(2006.01)
(86) International application number:
PCT/KR2010/009281
(87) International publication number:
WO 2011/081360 (07.07.2011 Gazette 2011/27)
(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: 28.12.2009 KR 20090131738

(71) Applicant: Posco
Pohang Kyungsangbook-do 790-300 (KR)

(72) Inventors:
  • KIM, Dong-Hyun
    Pohang Kyungsangbook-do 790-360 (KR)
  • LEE, You-Hwan
    Pohang Kyungsangbook-do 790-360 (KR)
  • LEE, Sang-Yoon
    Pohang Kyungsangbook-do 790-360 (KR)
  • CHO, Hyung-Keun
    Pohang Kyungsangbook-do 790-360 (KR)

(74) Representative: Zech, Stefan Markus et al
Meissner, Bolte & Partner GbR Postfach 86 06 24
81633 München
81633 München (DE)

   


(54) ULTRA-HIGH-STRENGTH STEEL WIRE HAVING EXCELLENT RESISTANCE TO DELAYED FRACTURE AND MANUFACTURING METHOD THEREOF