EP 0455625 B1 19940706 - High strength corrosion-resistant duplex alloy.
Title (en)
High strength corrosion-resistant duplex alloy.
Title (de)
Hochfeste korrosionsbeständige Duplexlegierung.
Title (fr)
Alliage à structure duplex, à haute résistance mécanique et résistant à la corrosion.
Publication
Application
Priority
AT 100790 A 19900503
Abstract (en)
[origin: EP0455625A1] The invention relates to a readily weldable duplex alloy having excellent corrosion resistance and a high level of mechanical properties, coupled with good cutting properties. After forced cooling from a temperature between 1020 DEG C and 1150 DEG C, the alloy according to the invention contains ferrite and austenite in a ratio of 40 to 60 % and contains, in % by weight, essentially 0.15 - 0.55 Si, 2.0 - 2.9 Mn, 23.0 - 27.0 Cr, 3.0 - 5.0 Mo, 5.6 - 8.0 Ni, 0.5 - 1.0 W, 0.2 - 0.35 N and 0.04 - 0.25 V, the remainder being iron, the ratio value G of the nickel content to the manganese content being greater than 2.0 and smaller than 4.0, and the structure phase factor P, formed from [2.9 x (% Cr) + 2.9 x (% Mo) + 1.4 x (% W) + 4.4 x (% Si) - 2.1 x (% Ni) - 1.0 x (% Mn) - 62.5 (% N)] having a value greater than 40 and smaller than 65.
IPC 1-7
IPC 8 full level
C22C 38/58 (2006.01)
CPC (source: EP)
C22C 38/58 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0455625 A1 19911106; EP 0455625 B1 19940706; AT 397515 B 19940425; AT A100790 A 19930915; AT E108220 T1 19940715; DE 59102100 D1 19940811
DOCDB simple family (application)
EP 91890088 A 19910425; AT 100790 A 19900503; AT 91890088 T 19910425; DE 59102100 T 19910425