WIRE ROD WITH EXCELLENT STRENGTH AND DUCTILITY AND MANUFACTURING METHOD THEREFOR

Title:

WIRE ROD WITH EXCELLENT STRENGTH AND DUCTILITY AND MANUFACTURING METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2018/110851

Kind Code:

A1

Abstract:

Disclosed are a wire rod and a manufacturing method therefor, the wire rod comprising, by weight %: 0.05-0.20% of C, 0.2% or less of Si, 5.0-6.0% of Mn, 0.020% or less of P, 0.020% or less of S, 0.010-0.050% of Al, 0.010-0.020% of N, and a balance of Fe and inevitable impurities and having a microcrystalline structure composed of two phases of austenite and ferrite, wherein the austenite has an area fraction of 15-25 %.

Inventors:

LEE HYONG-JIK (KR)
CHOI YUM-HO (KR)

Application Number:

PCT/KR2017/013392

Publication Date:

June 21, 2018

Filing Date:

November 23, 2017

Export Citation:

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Assignee:

POSCO (KR)

International Classes:

C22C38/04; C21D8/06; C21D9/52; C22C38/00; C22C38/02; C22C38/06

Foreign References:

CN103060678A	2013-04-24
JP2012224884A	2012-11-15
KR101253823B1	2013-04-12
KR20130001401A	2013-01-04

Other References:

SEO ET AL.: "Deformation Behavior or Ferrite-austenite Duplex Lightweight Fe-Mn-Al-C Steel", SCRIPTA MATERIALIA, vol. 66, no. 8, 2 January 2012 (2012-01-02), pages 519 - 522, XP028460527
See also references of EP 3556886A4

Attorney, Agent or Firm:

C&S PATENT AND LAW OFFICE (KR)

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