EP 2238271 A4 20141001 - WIRE RODS HAVING SUPERIOR STRENGTH AND DUCTILITY FOR DRAWING AND METHOD FOR MANUFACTURING THE SAME
Title (en)
WIRE RODS HAVING SUPERIOR STRENGTH AND DUCTILITY FOR DRAWING AND METHOD FOR MANUFACTURING THE SAME
Title (de)
DRÄHTE MIT ÜBERLEGENER FESTIGKEIT UND DUKTILITÄT ZUM ZIEHEN UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
TIGES DE FIL MÉTALLIQUE POUR ÉTIRAGE PRÉSENTANT UNE RÉSISTANCE ET UNE DUCTILITÉ ÉLEVÉES, ET PROCÉDÉ DE FABRICATION DE TELLES TIGES
Publication
Application
Priority
- KR 2008006660 W 20081112
- KR 20070139434 A 20071227
Abstract (en)
[origin: WO2009084811A1] There are provided a wire rod for drawing having superior strength and ductility and a method for manufacturing the same. The wire rod for drawing comprises, by weight: carbon (C): 0.87 to 1.0%, manganese (Mn): 0.1 to 0.60%, silicon (Si): 0.3 to 1.0%, sulfur (S): 0.010% or less (excluding 0%), phosphorus (P): 0.011% or less (excluding 0%), chromium (Cr): 0.1 to 0.5%, nitrogen (N): 0.007% or less (excluding 0%), and the balance of iron (Fe) and other inevitable impurities, wherein the sum of the Si and Cr contents satisfies the following equation: 0.6 = Si+Cr =1.2 (the contents of Si and Cr is represented by '% by weight'), and the wire rod has a pearlite structure.
IPC 8 full level
C22C 38/00 (2006.01); C21D 8/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/08 (2006.01); C22C 38/18 (2006.01)
CPC (source: EP KR US)
B21C 1/003 (2013.01 - EP US); C21D 8/065 (2013.01 - EP KR US); C22C 38/001 (2013.01 - EP KR US); C22C 38/02 (2013.01 - EP KR US); C22C 38/04 (2013.01 - EP KR US); C22C 38/18 (2013.01 - EP US); C22C 38/40 (2013.01 - EP KR US); C21D 2211/009 (2013.01 - EP KR US)
Citation (search report)
- [IY] US 5240520 A 19930831 - TARUI TOSHIMI [JP], et al
- [X] JP 2001220649 A 20010814 - NIPPON STEEL CORP
- [Y] JP 2004091912 A 20040325 - SUMITOMO METAL IND
- [X] US 2004118486 A1 20040624 - ZELIN MICHAEL GREGORY [US], et al
- See also references of WO 2009084811A1
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 MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2009084811 A1 20090709; CN 101910440 A 20101208; EP 2238271 A1 20101013; EP 2238271 A4 20141001; JP 2011509345 A 20110324; KR 100979006 B1 20100830; KR 20090071206 A 20090701; US 2010263772 A1 20101021
DOCDB simple family (application)
KR 2008006660 W 20081112; CN 200880123271 A 20081112; EP 08867709 A 20081112; JP 2010540556 A 20081112; KR 20070139434 A 20071227; US 81006108 A 20081112