EP 3378964 A1 20180926 - WIRE ROD FOR STEEL WIRE, AND STEEL WIRE
Title (en)
WIRE ROD FOR STEEL WIRE, AND STEEL WIRE
Title (de)
DRAHTSTAB FÜR STAHLDRAHT SOWIE STAHLDRAHT
Title (fr)
TIGE DE FIL MÉTALLIQUE POUR FIL D'ACIER ET FIL D'ACIER
Publication
Application
Priority
- JP 2014136222 A 20140701
- EP 15814624 A 20150602
- JP 2015065863 W 20150602
Abstract (en)
An object of the present invention is to provide a method for producing a wire rod for a steel wire, which is excellent in low cycle fatigue characteristics and is useful as a material for a high-strength steel wire such as a wire rope or a PC steel wire. A wire rod for a steel wire produced by the method of the present invention comprises by mass: C: 0.70 to 1.3%; Si: 0.1 to 1.5%; Mn: 0.1 to 1.5%; N: 0.001 to 0.006%; Al: 0.001 to 0.10%; Ti: 0.02 to 0.20%; B: 0.0005 to 0.010%; P: 0% or more and 0.030% or less; and S: 0% or more and 0.030% or less, with the balance being iron and inevitable impurities, wherein, the wire rod has pearlite as a main phase, an area ratio of proeutectoid ferrite is 1.0% or less, and an average thickness of the proeutectoid ferrite is 5 µm or less.
IPC 8 full level
C22C 38/00 (2006.01); C21D 8/06 (2006.01); C21D 9/52 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/08 (2006.01); C22C 38/10 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/16 (2006.01); C22C 38/28 (2006.01); C22C 38/32 (2006.01); C22C 38/54 (2006.01)
CPC (source: EP KR US)
C21D 8/065 (2013.01 - EP US); C22C 38/00 (2013.01 - EP US); C22C 38/001 (2013.01 - EP KR US); C22C 38/002 (2013.01 - EP US); C22C 38/02 (2013.01 - EP KR US); C22C 38/04 (2013.01 - EP KR US); C22C 38/06 (2013.01 - EP KR US); C22C 38/08 (2013.01 - EP US); C22C 38/105 (2013.01 - EP US); C22C 38/12 (2013.01 - EP KR US); C22C 38/14 (2013.01 - EP KR US); C22C 38/16 (2013.01 - EP US); C22C 38/28 (2013.01 - EP US); C22C 38/32 (2013.01 - EP US); C22C 38/54 (2013.01 - KR); C21D 8/06 (2013.01 - EP US); C21D 9/52 (2013.01 - EP US); C21D 2211/009 (2013.01 - EP KR US)
Citation (applicant)
- JP 2011225990 A 20111110 - KOBE STEEL LTD
- JP 2007039800 A 20070215 - NIPPON STEEL CORP
- WO 2007139234 A1 20071206 - NIPPON STEEL CORP [JP], et al
Citation (search report)
- [X] JP 2013204069 A 20131007 - KOBE STEEL LTD
- [A] JP 2007039800 A 20070215 - NIPPON STEEL CORP
- [A] JP H11199978 A 19990727 - KOBE STEEL LTD
- [A] EP 1203829 A2 20020508 - KOBE STEEL LTD [JP]
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
DOCDB simple family (publication)
EP 3165625 A1 20170510; EP 3165625 A4 20171122; CA 2951799 A1 20160107; CN 106661687 A 20170510; CN 109576448 A 20190405; EP 3378964 A1 20180926; JP 2016014168 A 20160128; KR 20170013340 A 20170206; MX 2016017005 A 20170512; US 2017198375 A1 20170713; WO 2016002413 A1 20160107
DOCDB simple family (application)
EP 15814624 A 20150602; CA 2951799 A 20150602; CN 201580034203 A 20150602; CN 201810973135 A 20150602; EP 18171309 A 20150602; JP 2014136222 A 20140701; JP 2015065863 W 20150602; KR 20167036839 A 20150602; MX 2016017005 A 20150602; US 201515321034 A 20150602