EP 1865079 A1 20071212 - Wire rod excellent in wire-drawing workability and method for producing same
Title (en)
Wire rod excellent in wire-drawing workability and method for producing same
Title (de)
Drahtstange mit hervorragenden Zieheigenschaften und Verfahren zu ihrer Herstellung
Title (fr)
Barre de fil ayant une capacité de tréfilage supérieure et sa procédé de production
Publication
Application
Priority
JP 2006157622 A 20060606
Abstract (en)
Disclosed are a wire rod and a method therefor. The wire rod is excellent in wire-drawing workability, insusceptible to wire break in spite of an increase in wire-drawing rate, and reduction of area, and capable of extending a die life by suppressing die wear. The wire rod is made of steel containing C: 0.6 to 1.1 %, Si: 0.1 to 2.0%, Mn: 0.1 to 1 %, P: not more than 0.20 %, S: not more than 0.20 %, N: not more than 0.006 %, Al : not more than 0.03 %, and O: not more than 0.003 %, the balance including Fe, and unavoidable impurities. Further, the wire rod comprises a pearlite structure wherein an area ratio of a second-phase ferrite is not more than 11.0 %, and a pearlite lamellar spacing is not less than 120 µm.
IPC 8 full level
C21D 8/06 (2006.01); C22C 38/00 (2006.01)
CPC (source: EP KR US)
C21D 8/065 (2013.01 - EP KR US); C22C 38/001 (2013.01 - KR); C22C 38/02 (2013.01 - EP KR US); C22C 38/04 (2013.01 - EP KR US); C22C 38/06 (2013.01 - EP KR US); C21D 2211/009 (2013.01 - KR)
Citation (search report)
- [PX] EP 1674588 A1 20060628 - KOBE STEEL LTD [JP]
- [A] JP 2003082434 A 20030319 - KOBE STEEL LTD
- [A] US 2006048864 A1 20060309 - NAGAO MAMORU [JP], et al
- [A] EP 1559805 A1 20050803 - KOBE STEEL LTD [JP]
- [A] JP H11315348 A 19991116 - KOBE STEEL LTD
- [A] EP 1277846 A1 20030122 - KOBE STEEL LTD [JP]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1865079 A1 20071212; BR PI0702592 A 20080219; CN 101086052 A 20071212; JP 2007327084 A 20071220; KR 20070116731 A 20071211; TW 200823300 A 20080601; US 2007277913 A1 20071206
DOCDB simple family (application)
EP 07252270 A 20070606; BR PI0702592 A 20070606; CN 200710106434 A 20070529; JP 2006157622 A 20060606; KR 20070054841 A 20070605; TW 96119798 A 20070601; US 75453707 A 20070529