EP 1306457 A3 20031022 - Chromium steel
Title (en)
Chromium steel
Title (de)
Chrom-Stahllegierung
Title (fr)
Acier au chrome
Publication
Application
Priority
DE 10152293 A 20011023
Abstract (en)
[origin: EP1306457A2] Chromium/steel alloy comprises 10.5-20% chromium, 0.2-9% nickel, 0.1-3% manganese, 0.1-1.5% silicon, 0.01-2.0% molybdenum, 0.05-0.45% carbon, 0.02-0.15% nitrogen, 0.3-0.8% copper, 0.002-0.05% aluminum, 0.003-0.1% titanium, 0.003-0.1% vanadium, 0.001-0.05% niobium, 0.01-0.2% titanium+vanadium+niobium, up to 0.006% boron, and the balance of iron to satisfy the equation: <??>10x(%Ti+%V+%Nb) = Ax(%C+%N) <??>A = 1-7. <??>An Independent claim is also included for a process for annealing the above alloy for 15 minutes to 2 hours at 180-480 degrees C. <??>Preferably the alloy contains 16-18% chromium, 6-8% nickel, 0.5-1.5% manganese, 0.3-1.5% silicon, 0.4-1% molybdenum, 0.1-0.3% carbon, 0.05-0.1% nitrogen, 0.002-0.006% boron, 0.003-0.1% titanium, 0.003-0.1% vanadium and 0.001-0.05% niobium.
IPC 1-7
IPC 8 full level
C21D 1/30 (2006.01); C21D 9/46 (2006.01); C22C 38/00 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/46 (2006.01); C22C 38/48 (2006.01); C22C 38/50 (2006.01); C22C 38/54 (2006.01); C21D 6/00 (2006.01); C21D 9/00 (2006.01); C21D 9/02 (2006.01)
CPC (source: EP)
C21D 1/30 (2013.01); C21D 9/46 (2013.01); C22C 38/001 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C22C 38/46 (2013.01); C22C 38/48 (2013.01); C22C 38/50 (2013.01); C22C 38/54 (2013.01); C21D 6/004 (2013.01); C21D 9/0025 (2013.01); C21D 9/02 (2013.01)
Citation (search report)
- [X] EP 0750687 B
- [X] EP 1106705 A1 20010613 - NIPPON STEEL CORP [JP]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
EP 1306457 A2 20030502; EP 1306457 A3 20031022; EP 1306457 B1 20071205; AT E380262 T1 20071215; DE 10152293 A1 20030515; DE 10152293 B4 20040408; DE 50211315 D1 20080117
DOCDB simple family (application)
EP 02023592 A 20021023; AT 02023592 T 20021023; DE 10152293 A 20011023; DE 50211315 T 20021023