EP 0939140 B1 20020508 - Steel for use at high temperatures
Title (en)
Steel for use at high temperatures
Title (de)
Eisenbasislegierung zur Verwendung bei erhöhten Temperaturen
Title (fr)
Acier pour utiliser à hautes températures
Publication
Application
Priority
EP 98890052 A 19980227
Abstract (en)
[origin: EP0939140A1] A chromium-molybdenum-vanadium steel has specified impurity content and accompanying elements for producing tools with isotropic properties. A ferrous metal alloy, of composition (by wt.) 0.25-0.79% C, 1.10-7.95% Cr, 0.56-3.49% Mo, 0.26-1.48% V and balance Fe, contains impurity and accompanying elements in the following quantities: (solid solution elements) 0.098-0.29% Mn and NOTGREATER 0.35 Ni+Co+Cu+W; (impurity elements) NOTGREATER 0.007% S+P and NOTGREATER 0.0014% O; (oxide-forming elements) 0.081-0.25% Si+Al and 0.00014-0.0009% Ca+Mg; (monocarbide-forming elements) NOTGREATER 0.008% Ti+Nb+Zr+Hf+Ta; (grain boundary active impurity elements) NOTGREATER 0.009% As+Bi+Sb+Sn+Zn+B; and (gases) NOTGREATER 0.008% N+H.
IPC 1-7
IPC 8 full level
C22C 38/18 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01)
CPC (source: EP)
C22C 38/18 (2013.01); C22C 38/22 (2013.01); C22C 38/24 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0939140 A1 19990901; EP 0939140 B1 20020508; AT E217360 T1 20020515; DE 59804046 D1 20020613; ES 2176944 T3 20021201; HK 1024512 A1 20001013
DOCDB simple family (application)
EP 98890052 A 19980227; AT 98890052 T 19980227; DE 59804046 T 19980227; ES 98890052 T 19980227; HK 00101331 A 20000301