Global Patent Index - EP 2532764 B1

EP 2532764 B1 20190424 - WIRE MATERIAL, STEEL WIRE, AND PROCESSES FOR PRODUCTION OF THOSE PRODUCTS

Title (en)

WIRE MATERIAL, STEEL WIRE, AND PROCESSES FOR PRODUCTION OF THOSE PRODUCTS

Title (de)

DRAHTMATERIAL, STAHLDRAHT UND VERFAHREN ZUR HERSTELLUNG DIESER PRODUKTE

Title (fr)

MATÉRIAU POUR FILS, FIL D'ACIER ET PROCÉDÉS DE PRODUCTION ASSOCIÉS

Publication

EP 2532764 B1 20190424 (EN)

Application

EP 10838391 A 20101019

Priority

  • JP 2010020185 A 20100201
  • JP 2010068363 W 20101019

Abstract (en)

[origin: WO2011092905A1] A wire material comprising 0.95 to 1.30 mass% of C, 0.1 to 1.5 mass% of Si, 0.1 to 1.0 mass% of Mn, 0 to 0.1 mass% of Al, 0 to 0.1 mass% of Ti, 0 to 0.02 mass% of P, 0 to 0.02 mass% of S, 10 to 50 ppm of N, 10 to 40 ppm of O, and the remainder containing at least Fe and unavoidable impurities, wherein 97% or more of the area of a cross-sectional surface perpendicular to the length-wise direction of the wire material is occupied by a pearlite structure, and wherein both a 0.5% or less of the area of the center region of the cross-sectional surface and 0.5% or less of the area of a first surface layer region of the cross-sectional surface are occupied by a pro-eitectoid cementite structure.

IPC 8 full level

C21D 8/06 (2006.01); C21D 9/52 (2006.01); C22C 38/00 (2006.01); C22C 38/54 (2006.01)

CPC (source: EP KR)

C21D 1/48 (2013.01 - EP KR); C21D 8/06 (2013.01 - EP KR); C21D 8/065 (2013.01 - EP KR); C21D 9/525 (2013.01 - KR); C22C 38/001 (2013.01 - EP KR); C22C 38/002 (2013.01 - KR); C22C 38/005 (2013.01 - KR); C22C 38/02 (2013.01 - EP KR); C22C 38/04 (2013.01 - EP KR); C21D 9/525 (2013.01 - EP); C21D 2211/002 (2013.01 - EP KR); C21D 2211/009 (2013.01 - EP KR)

Citation (examination)

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)

WO 2011092905 A1 20110804; CN 102301024 A 20111228; CN 102301024 B 20140305; EP 2532764 A1 20121212; EP 2532764 A4 20160120; EP 2532764 B1 20190424; KR 101318009 B1 20131014; KR 20110101231 A 20110915; MX 2011008034 A 20111005

DOCDB simple family (application)

JP 2010068363 W 20101019; CN 201080005987 A 20101019; EP 10838391 A 20101019; KR 20117017872 A 20101019; MX 2011008034 A 20101019