EP 1228253 A1 20020807 - STEEL COMPOSITION, METHOD FOR MAKING SAME AND PARTS PRODUCED FROM SAID COMPOSITIONS, PARTICULARLY VALVES
Title (en)
STEEL COMPOSITION, METHOD FOR MAKING SAME AND PARTS PRODUCED FROM SAID COMPOSITIONS, PARTICULARLY VALVES
Title (de)
STAHLZUSAMMENSETZUNG, HERSTELLUNGSVERFAHREN UND HERGESTELLTE FORMTEILE AUS DIESEN ZUSAMMENSETZUNGEN INSBESONDERE VENTILEN
Title (fr)
COMPOSITION D'ACIER, PROCEDE DE FABRICATION ET PIECES FORMEES DANS CES COMPOSITIONS, EN PARTICULIER SOUPAPES
Publication
Application
Priority
- FR 0101388 W 20010507
- FR 0005967 A 20000510
Abstract (en)
[origin: WO0186009A1] The invention concerns a steel composition comprising, expressed in weight percentages: 0.25-0.35 % of C, 24-28 % of Cr, 10-15 % of Ni, 3-6 % of Mn, 1.75-2.50 % of Nb, 0.50-0.70 % of N, 0-0.30 % of Si, provided that C+N >/= 0.8 %, the rest consisting mainly of iron and unavoidable impurities. The invention also concerns a method for making said compositions and valves produced from said compositions or using said method and exhibiting excellent mechanical strength and oxidation resistance at temperatures between 800 and 900 DEG C.
IPC 1-7
IPC 8 full level
F01L 3/02 (2006.01); C21D 6/00 (2006.01); C21D 8/06 (2006.01); C21D 9/00 (2006.01); C22C 38/00 (2006.01); C22C 38/48 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP US)
C21D 6/004 (2013.01 - EP US); C22C 38/001 (2013.01 - EP US); C22C 38/48 (2013.01 - EP US); C22C 38/58 (2013.01 - EP US)
Citation (search report)
See references of WO 0186009A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0186009 A1 20011115; AT E299953 T1 20050815; AU 5850901 A 20011120; BR 0106337 A 20020402; BR 0106337 B1 20140930; DE 60112032 D1 20050825; DE 60112032 T2 20060720; EP 1228253 A1 20020807; EP 1228253 B1 20050720; EP 1228253 B8 20050921; ES 2248325 T3 20060316; FR 2808807 A1 20011116; FR 2808807 B1 20020719; JP 2003532795 A 20031105; JP 5288674 B2 20130911; MX PA02000345 A 20040521; US 2003044304 A1 20030306; US 6656418 B2 20031202
DOCDB simple family (application)
FR 0101388 W 20010507; AT 01931816 T 20010507; AU 5850901 A 20010507; BR 0106337 A 20010507; DE 60112032 T 20010507; EP 01931816 A 20010507; ES 01931816 T 20010507; FR 0005967 A 20000510; JP 2001582596 A 20010507; MX PA02000345 A 20010507; US 3086002 A 20020509