EP 2423344 B1 20151104 - HIGH STRENGTH, HIGH TOUGHNESS STEEL WIRE ROD, AND METHOD FOR MANUFACTURING SAME
Title (en)
HIGH STRENGTH, HIGH TOUGHNESS STEEL WIRE ROD, AND METHOD FOR MANUFACTURING SAME
Title (de)
HOCHFESTER STAHLWALZDRAHT MIT HOHER ZÄHIGKEIT SOWIE HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
FIL MACHINE EN ACIER DE RÉSISTANCE ET DE SOLIDITÉ ÉLEVÉES, ET SON PROCÉDÉ DE FABRICATION
Publication
Application
Priority
- KR 2010002568 W 20100423
- KR 20090035699 A 20090423
Abstract (en)
[origin: EP2423344A2] Provided are a high-strength, high-toughness steel wire rod and a method of manufacturing the same. The steel wire rod of the present invention has a composition including 0.07 wt% to 0.14 wt% of aluminum (Al) and nitrogen (N) wherein Al:N (where Al and N denote wt% of each element) is in a range of 15:1 to 25:1. Since a steel wire rod having sufficient strength and toughness improvement effects can be obtained with a simple alloy component, a steel wire rod capable of allowing processing such as cold forging to be performed without an additional heat treatment may be provided.
IPC 8 full level
B21B 1/16 (2006.01); C21D 8/06 (2006.01); C22C 38/00 (2006.01)
CPC (source: EP KR US)
C21D 8/065 (2013.01 - KR); C22C 38/001 (2013.01 - EP KR US); C22C 38/02 (2013.01 - KR); C22C 38/04 (2013.01 - KR); C22C 38/06 (2013.01 - EP KR US); C22C 38/12 (2013.01 - EP US); C22C 38/14 (2013.01 - EP US); C21D 2211/005 (2013.01 - KR); C21D 2211/009 (2013.01 - KR)
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)
EP 2423344 A2 20120229; EP 2423344 A4 20141029; EP 2423344 B1 20151104; CN 102439186 A 20120502; CN 102439186 B 20150408; KR 101143170 B1 20120508; KR 20100116991 A 20101102; RU 2011147484 A 20130527; RU 2494165 C2 20130927; US 2012037283 A1 20120216; WO 2010123315 A2 20101028; WO 2010123315 A3 20110310
DOCDB simple family (application)
EP 10767329 A 20100423; CN 201080018076 A 20100423; KR 20090035699 A 20090423; KR 2010002568 W 20100423; RU 2011147484 A 20100423; US 201013263758 A 20100423