EP 2447382 B1 20190306 - HIGH-STRENGTH ULTRA-FINE STEEL WIRE AND MANUFACTURING METHOD THEREFOR
Title (en)
HIGH-STRENGTH ULTRA-FINE STEEL WIRE AND MANUFACTURING METHOD THEREFOR
Title (de)
HOCHFESTER UND ULTRAFEINER STAHLDRAHT SOWIE HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
FIL D'ACIER ULTRA-FIN À HAUTE RÉSISTANCE ET PROCÉDÉ DE FABRICATION ASSOCIÉ
Publication
Application
Priority
- JP 2010002859 W 20100421
- JP 2009148051 A 20090622
Abstract (en)
[origin: US2011168302A1] The present invention provides a steel wire, including chemical components of: C: 0.7-1.2 mass %; Si: 0.05-2.0 mass %; and Mn: 0.2-2.0 mass %, with a balance including Fe and inevitable impurities, in which the steel wire has a pearlite structure, the average C concentration at a center portion of a ferrite phase in an outermost layer of the steel wire is 0.2 mass % or lower, and a residual compressive stress in the longitudinal direction of the steel wire in the outermost layer is 600 MPa or more.
IPC 8 full level
C21D 7/02 (2006.01); C21D 7/06 (2006.01); C21D 8/06 (2006.01); C21D 9/52 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/12 (2006.01); C22C 38/18 (2006.01); C22C 38/24 (2006.01); C22C 38/32 (2006.01); C22C 38/40 (2006.01); C22C 38/48 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP KR US)
C21D 7/02 (2013.01 - KR); C21D 8/065 (2013.01 - EP KR US); C21D 9/525 (2013.01 - EP KR US); C22C 38/02 (2013.01 - EP KR US); C22C 38/04 (2013.01 - EP KR US); C22C 38/12 (2013.01 - EP US); C22C 38/18 (2013.01 - EP US); C22C 38/24 (2013.01 - EP US); C22C 38/32 (2013.01 - EP US); C22C 38/40 (2013.01 - EP US); C22C 38/44 (2013.01 - KR); C22C 38/46 (2013.01 - KR); C22C 38/48 (2013.01 - EP KR US); C22C 38/54 (2013.01 - KR); C22C 38/58 (2013.01 - EP US); C21D 7/02 (2013.01 - EP US); C21D 2211/005 (2013.01 - EP KR US); C21D 2211/009 (2013.01 - EP KR US)
Designated contracting state (EPC)
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 SE SI SK SM TR
DOCDB simple family (publication)
US 2011168302 A1 20110714; CN 102066599 A 20110518; CN 102066599 B 20131106; EP 2447382 A1 20120502; EP 2447382 A4 20170802; EP 2447382 B1 20190306; JP 4719320 B2 20110706; JP WO2010150450 A1 20121206; KR 101260598 B1 20130503; KR 20110020256 A 20110302; TW 201102443 A 20110116; TW I412608 B 20131021; WO 2010150450 A1 20101229
DOCDB simple family (application)
US 99416910 A 20100421; CN 201080001860 A 20100421; EP 10778818 A 20100421; JP 2010002859 W 20100421; JP 2010540974 A 20100421; KR 20107028271 A 20100421; TW 99112013 A 20100416