EP 3133182 A4 20171011 - HOT-ROLLED WIRE

Title (en)

HOT-ROLLED WIRE

Title (de)

HEISSGEWALZTER DRAHT

Title (fr)

FIL LAMINÉ À CHAUD

Publication

EP 3133182 A4 20171011 (EN)

Application

EP 15780257 A 20150323

Priority

JP 2014086532 A 20140418
JP 2015058696 W 20150323

Abstract (en)

[origin: EP3133182A1] The present invention provides a hot rolled wire rod having high strength and excellent SSC resistance. Disclosed is a hot rolled wire rod including, in percent by mass: C: 0.20 to 0.5%, Si: 0.05 to 0.3%, Mn: 0.3 to 1.5%, Al: 0.001 to 0.1%, P: exceeding 0% and 0.01% or less, and S: exceeding 0% and 0.01% or less, with the balance being iron and inevitable impurities. When the sulfur content in the hot rolled wire rod is measured at 300 sites or more at intervals of 200 µm using an electron beam microanalyzer, a segregation ratio (S max /S ave ) is 30 or less, where a segregation ratio is defined as a ratio of the maximum sulfur content S max (% by mass) to an average sulfur content S ave (% by mass).

IPC 8 full level

C21D 8/06 (2006.01); C21D 9/52 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/08 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/16 (2006.01); C22C 38/24 (2006.01); C22C 38/32 (2006.01); C22C 38/54 (2006.01)

CPC (source: EP KR)

C21D 8/06 (2013.01 - KR); C21D 9/52 (2013.01 - KR); C22C 38/00 (2013.01 - EP); C22C 38/02 (2013.01 - EP KR); C22C 38/04 (2013.01 - EP); C22C 38/06 (2013.01 - EP KR); C22C 38/08 (2013.01 - EP); C22C 38/12 (2013.01 - EP); C22C 38/14 (2013.01 - EP); C22C 38/16 (2013.01 - EP); C22C 38/24 (2013.01 - EP); C22C 38/32 (2013.01 - EP); C22C 38/54 (2013.01 - KR); C21D 8/06 (2013.01 - EP); C21D 9/52 (2013.01 - EP)

Citation (search report)

[X] GB 2040197 A 19800828 - SOUTHWIRE CO
[A] EP 1197571 A1 20020417 - SUMITOMO METAL IND [JP]
See references of WO 2015159650A1

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 3133182 A1 20170222; EP 3133182 A4 20171011; BR 112016024110 A2 20170815; CN 106164316 A 20161123; CN 106164316 B 20180130; JP 2015212412 A 20151126; KR 20160131106 A 20161115; KR 20180112868 A 20181012; WO 2015159650 A1 20151022

DOCDB simple family (application)

EP 15780257 A 20150323; BR 112016024110 A 20150323; CN 201580019443 A 20150323; JP 2015054674 A 20150318; JP 2015058696 W 20150323; KR 20167028162 A 20150323; KR 20187028245 A 20150323