EP 0005439 A1 19791128 - Use of a ferritic-austenitic chromium-nickel steel.
Title (en)
Use of a ferritic-austenitic chromium-nickel steel.
Title (de)
Verwendung eines ferritisch-austenitischen Chrom-Nickel-Stahles.
Title (fr)
Utilisation d'un acier ferritique-austénitique au chrome-nickel.
Publication
Application
Priority
DE 2815439 A 19780410
Abstract (en)
[origin: US4272305A] Steel bodies composed of ferritic-austenitic Cr-Ni steel with 30 to 70% austenite and consisting essentially of: up to 0.1% by weight carbon, up to 1.0% by weight silicon, 4.0% to 6.0% by weight manganese, 22.0% to 28.0% by weight chromium, 3.5% to 5.5% by weight nickel, 1.0% to 3.0% by weight molybdenum, 0.35% to 0.6% by weight nitrogen, balance iron and unavoidable impurities, are subjected to forging and after even second degree deforming, possess a notch impact strength (tenacity) according to the ISO-V test of more than 35 Joule and a minimum yield point of 600 N/mm2.
Abstract (de)
Die Verwendung eines ferritisch-austenitischen Cr-Ni-Stahles, der 30 bis 70% Austenit enthält und der max. 0,1% C, max. 1,0% Si, 4,0 bis 6,0% Mn, 22,0 bis 28,0% Cr, 3,5 bis 5,5% Ni, 1,0 bis 3,0% Mo, 0,35 bis 0,6% N, Rest Eisen und unvermeidliche Verunreinigungen enthält, für Schmiedestücke, die bereits bei zweifachem Verformungsgrad eine Kerbschlagzähigkeit (nach ISO-V) von mehr als 35 Joule bei einer Mindeststreckgrenze von 600 N/mm² besitzen müssen.
IPC 1-7
IPC 8 full level
C22C 38/00 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP US)
C22C 38/58 (2013.01 - EP US)
Citation (search report)
- FR 2228119 A1 19741129 - NIPPON STEEL CORP [JP]
- FR 2007566 A1 19700109 - ARMCO STEEL CORP
- DE 2752083 A1 19780608 - ALLEGHENY LUDLUM IND INC
- GB 1158614 A 19690716 - LANGLEY ALLOYS LTD
- DE 1194587 B 19650610 - PHOENIX RHEINROHR AG, et al
- US 3311511 A 19670328 - GOLLER GEORGE N
- FR 2372902 A1 19780630 - ALLEGHENY LUDLUM IND INC [US]
Designated contracting state (EPC)
CH FR GB IT NL SE
DOCDB simple family (publication)
EP 0005439 A1 19791128; EP 0005439 B1 19810610; EP 0005439 B2 19870107; AT 360571 B 19810126; AT A232679 A 19800615; CA 1127881 A 19820720; CS 216926 B2 19821231; DD 142894 A5 19800716; DE 2815439 A1 19791018; DE 2815439 B2 19800221; DE 2815439 C3 19801009; JP S54155115 A 19791206; JP S5814872 B2 19830322; US 4272305 A 19810609
DOCDB simple family (application)
EP 79101013 A 19790403; AT 232679 A 19790329; CA 324884 A 19790404; CS 243779 A 19790410; DD 21212279 A 19790410; DE 2815439 A 19780410; JP 4211279 A 19790409; US 2881579 A 19790410