Global Patent Index - EP 2873748 A4

EP 2873748 A4 20151028 - WEAR-RESISTANT STEEL PLATE HAVING EXCELLENT LOW-TEMPERATURE TOUGHNESS AND CORROSION WEAR RESISTANCE

Title (en)

WEAR-RESISTANT STEEL PLATE HAVING EXCELLENT LOW-TEMPERATURE TOUGHNESS AND CORROSION WEAR RESISTANCE

Title (de)

VERSCHLEISSFESTE STAHLPLATTE MIT HERVORRAGENDER KÄLTEZÄHIGKEIT UND KORROSIONSVERSCHLEISSFESTIGKEIT

Title (fr)

TÔLE D'ACIER RÉSISTANT À L'USURE QUI PRÉSENTE UNE EXCELLENTE TÉNACITÉ À BASSE TEMPÉRATURE ET UNE EXCELLENTE RÉSISTANCE À L'USURE DUE À LA CORROSION

Publication

EP 2873748 A4 20151028 (EN)

Application

EP 13839513 A 20130913

Priority

  • JP 2012205304 A 20120919
  • JP 2013005433 W 20130913

Abstract (en)

[origin: EP2873748A1] Provided is an abrasion resistant steel plate which possesses excellent abrasion resistance, excellent low-temperature toughness and excellent corrosive wear resistance. An abrasion resistant steel plate includes the composition containing by mass%: 0.23% to 0.35% C, 0.05% to 1.00% Si, 0.1% to 2.0% Mn, 0.020% or less P, 0.005% or less S, 0.005% to 0.100% Al, 0.03% to 2.0% Cr, and 0.03% to 1.0% Mo in a state where DI* defined by the following formula (1) is satisfied 45 or more, and further containing remaining Fe and unavoidable impurities as a balance. The steel plate has a structure where an as-quenched martensitic phase forms a main phase and a grain size of prior austenite grains is 30 µm or less, and surface hardness of the steel plate is 450 or more at Brinel hardness HBW10/3000.

IPC 8 full level

C22C 38/38 (2006.01); C21D 8/02 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/20 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/26 (2006.01); C22C 38/28 (2006.01); C22C 38/32 (2006.01); C22C 38/40 (2006.01); C22C 38/60 (2006.01)

CPC (source: CN EP KR US)

C21D 1/18 (2013.01 - EP US); C21D 6/002 (2013.01 - EP US); C21D 6/004 (2013.01 - EP US); C21D 6/005 (2013.01 - EP US); C21D 6/008 (2013.01 - EP US); C21D 8/0263 (2013.01 - CN EP US); C21D 9/46 (2013.01 - EP US); C22C 38/001 (2013.01 - CN EP US); C22C 38/002 (2013.01 - EP US); C22C 38/005 (2013.01 - CN EP US); C22C 38/008 (2013.01 - CN EP US); C22C 38/02 (2013.01 - CN EP US); C22C 38/04 (2013.01 - CN EP US); C22C 38/06 (2013.01 - CN EP KR US); C22C 38/20 (2013.01 - CN EP US); C22C 38/22 (2013.01 - CN EP KR US); C22C 38/24 (2013.01 - CN EP US); C22C 38/26 (2013.01 - CN EP US); C22C 38/28 (2013.01 - CN EP US); C22C 38/32 (2013.01 - CN EP US); C22C 38/38 (2013.01 - EP KR US); C22C 38/40 (2013.01 - CN EP US); C22C 38/42 (2013.01 - EP US); C22C 38/44 (2013.01 - EP US); C22C 38/46 (2013.01 - EP US); C22C 38/48 (2013.01 - EP US); C22C 38/50 (2013.01 - EP US); C22C 38/54 (2013.01 - EP US); C22C 38/60 (2013.01 - CN EP KR US); C21D 8/02 (2013.01 - CN EP US); C21D 8/0226 (2013.01 - CN EP US); C21D 2211/001 (2013.01 - CN EP US); C21D 2211/008 (2013.01 - CN EP US)

Citation (search report)

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 2873748 A1 20150520; EP 2873748 A4 20151028; EP 2873748 B1 20180314; AU 2013319621 A1 20150226; AU 2013319621 B2 20161013; BR 112015005951 A2 20170704; BR 112015005951 B1 20190917; CL 2015000661 A1 20150821; CN 104685088 A 20150603; IN 771DEN2015 A 20150703; JP WO2014045552 A1 20160818; KR 20150038590 A 20150408; MX 2015003379 A 20150605; PE 20150790 A1 20150530; US 2015232971 A1 20150820; WO 2014045552 A1 20140327

DOCDB simple family (application)

EP 13839513 A 20130913; AU 2013319621 A 20130913; BR 112015005951 A 20130913; CL 2015000661 A 20150317; CN 201380048598 A 20130913; IN 771DEN2015 A 20150130; JP 2013005433 W 20130913; JP 2014536584 A 20130913; KR 20157005644 A 20130913; MX 2015003379 A 20130913; PE 2015000319 A 20130913; US 201314429557 A 20130913