EP 3561122 A1 20191030 - AUSTENITE STEEL MATERIAL HAVING SUPERB SURFACE CHARACTERISTIC, AND METHOD FOR PRODUCING SAME
Title (en)
AUSTENITE STEEL MATERIAL HAVING SUPERB SURFACE CHARACTERISTIC, AND METHOD FOR PRODUCING SAME
Title (de)
AUSTENITISCHES STAHLMATERIAL MIT AUSGEZEICHNETER OBERFLÄCHENEIGENSCHAFT UND VERFAHREN ZUR HERSTELLUNG DAVON
Title (fr)
MATÉRIAU EN ACIER AUSTÉNITIQUE PRÉSENTANT DE REMARQUABES CARACTÉRISTIQUES DE SURFACE, ET SON PROCÉDÉ DE PRODUCTION
Publication
Application
Priority
- KR 20160178238 A 20161223
- KR 2017015215 W 20171221
Abstract (en)
The present invention relates to abrasion-resistant austenite steel material having superb surface characteristic, and a method for producing the abrasion-resistant austenite steel material. Provided are austenite steel material having superb surface characteristic, and a method for producing same, the austenite steel material according to the present invention comprising, in weight %: 0.6-1.3% carbon (C); 14-22% manganese (Mn); 5% or lower (excluding 0%) copper (Cu); 5% or lower (excluding 0%) chromium (Cr); 1.0% or lower (excluding 0%) silicon (Si); 0.5% or lower (excluding 0%) aluminum (Al); 0.1% or lower (including 0%) phosphorous (P); 0.02% or lower (including 0%) sulfur (S); and remainder in iron (Fe) and other unavoidable impurities, and having the microstructure comprising, by surface area %, 5% or lower carbide and the rest in austenite structure, and surface flaw size of 0.3mm or lower.
IPC 8 full level
C22C 38/38 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/06 (2006.01); C22C 38/20 (2006.01)
CPC (source: EP KR US)
C21D 6/002 (2013.01 - EP US); C21D 6/005 (2013.01 - EP US); C21D 6/008 (2013.01 - US); C21D 8/02 (2013.01 - EP); C21D 8/0205 (2013.01 - EP US); C21D 8/0226 (2013.01 - EP KR US); C21D 8/0263 (2013.01 - KR US); C21D 9/46 (2013.01 - EP KR US); C22C 38/00 (2013.01 - EP); C22C 38/002 (2013.01 - KR US); C22C 38/02 (2013.01 - EP KR); C22C 38/06 (2013.01 - EP KR US); C22C 38/20 (2013.01 - EP KR US); C22C 38/34 (2013.01 - US); C22C 38/38 (2013.01 - EP KR US); C21D 2211/001 (2013.01 - KR US); C21D 2211/004 (2013.01 - US)
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3561122 A1 20191030; EP 3561122 A4 20191225; CA 3047237 A1 20180628; CN 110088343 A 20190802; JP 2020509211 A 20200326; KR 101920973 B1 20181121; KR 20180074294 A 20180703; US 2020087751 A1 20200319; WO 2018117678 A1 20180628
DOCDB simple family (application)
EP 17884959 A 20171221; CA 3047237 A 20171221; CN 201780079005 A 20171221; JP 2019534166 A 20171221; KR 20160178238 A 20161223; KR 2017015215 W 20171221; US 201716471777 A 20171221