EP 2589676 B1 20200422 - ABRASION-RESISTANT STEEL PLATE OR SHEET WITH EXCELLENT WELD TOUGHNESS AND DELAYED FRACTURE RESISTANCE
Title (en)
ABRASION-RESISTANT STEEL PLATE OR SHEET WITH EXCELLENT WELD TOUGHNESS AND DELAYED FRACTURE RESISTANCE
Title (de)
ABRIEBFESTE STAHLPLATTE ODER BLECH MIT EXZELLENTER SCHWEISSFESTIGKEIT UND VERZÖGERTER BRUCHFESTIGKEIT
Title (fr)
PLAQUE OU TÔLE D'ACIER RÉSISTANT À L'ABRASION AVEC D'EXCELLENTES PROPRIÉTÉS EN TERMES DE TÉNACITÉ D'UNE SOUDURE ET DE RÉSISTANCE À LA RUPTURE DIFFÉRÉE
Publication
Application
Priority
- JP 2011142506 A 20110628
- JP 2010149649 A 20100630
- JP 2011065416 W 20110629
Abstract (en)
[origin: EP2589676A1] An abrasion resistant steel plate which is excellent in weld toughness and delayed fracture resistance and is preferably used in construction machines, industrial machines and the like is provided. To be more specific, the composition of the steel plate contains by mass% 0.20 to 0.30% C, 0.05 to 1.0% Si, 0.40 to 1.2% Mn, 0.010% or less P, 0.005% or less S, 0.40 to 1.5% Cr, 0.005 to 0.025% Nb, 0.005 to 0.03% Ti, 0.1% or less Al and 0.01% or less N, and further contains one, two or more kinds of components selected from a group consisting of Mo, W, B, Cu, Ni, V, REM, Ca and Mg when necessary, wherein DI* (DI* = 33.85 × (0.1×C) 0.5 × (0.7×Si+1) × (3.33×Mn+1) × (0.35×Cu+1) × (0.36×Ni+1) × (2.16×Cr+1) × (3×Mo+1) × (1.75×V+1) × (1.5×W+1)) is 45 to 180, C+Mn/4-Cr/3+10P‰¤0.47, and a base phase of the microstructure is formed of martensite.
IPC 8 full level
C22C 38/00 (2006.01); C21D 8/02 (2006.01); C21D 9/46 (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 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/54 (2006.01)
CPC (source: EP KR US)
C21D 8/02 (2013.01 - EP KR US); C21D 9/46 (2013.01 - EP KR US); C22C 38/00 (2013.01 - EP US); C22C 38/001 (2013.01 - EP KR US); C22C 38/002 (2013.01 - EP KR US); C22C 38/005 (2013.01 - EP KR US); C22C 38/02 (2013.01 - EP US); C22C 38/04 (2013.01 - EP US); C22C 38/06 (2013.01 - EP US); C22C 38/12 (2013.01 - US); C22C 38/20 (2013.01 - EP US); C22C 38/22 (2013.01 - EP US); C22C 38/24 (2013.01 - EP US); C22C 38/26 (2013.01 - EP US); C22C 38/28 (2013.01 - EP US); C22C 38/32 (2013.01 - EP US); C22C 38/42 (2013.01 - EP KR US); C22C 38/44 (2013.01 - EP KR US); C22C 38/46 (2013.01 - KR US); C22C 38/48 (2013.01 - EP KR US); C22C 38/50 (2013.01 - EP KR US); C22C 38/54 (2013.01 - EP KR US); C21D 2211/008 (2013.01 - EP 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
DOCDB simple family (publication)
EP 2589676 A1 20130508; EP 2589676 A4 20170419; EP 2589676 B1 20200422; AU 2011272188 B2 20140501; AU 2011272188 C1 20141204; CA 2801703 A1 20120105; CA 2801703 C 20160524; CN 102959113 A 20130306; JP 2012031510 A 20120216; JP 5866820 B2 20160224; KR 20130045900 A 20130506; MX 2013000031 A 20130201; MX 354630 B 20180314; RU 2013103814 A 20140810; RU 2550985 C2 20150520; US 2013216422 A1 20130822; WO 2012002567 A1 20120105
DOCDB simple family (application)
EP 11801027 A 20110629; AU 2011272188 A 20110629; CA 2801703 A 20110629; CN 201180031924 A 20110629; JP 2011065416 W 20110629; JP 2011142506 A 20110628; KR 20137001872 A 20110629; MX 2013000031 A 20110629; RU 2013103814 A 20110629; US 201113806954 A 20110629