(19)
(11) EP 2 047 007 A1

(12)

(43) Date of publication:
15.04.2009 Bulletin 2009/16

(21) Application number: 07751919.7

(22) Date of filing: 28.02.2007
(51) International Patent Classification (IPC): 
C22C 38/00(2006.01)
(86) International application number:
PCT/US2007/005188
(87) International publication number:
WO 2008/016395 (07.02.2008 Gazette 2008/06)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR MK RS

(30) Priority: 31.07.2006 US 495671

(71) Applicants:
  • CATERPILLAR INC.
    Peoria IL 61629-6490 (US)
  • UT-Battelle, LLC
    Oak Ridge, TN 37831-6258 (US)

(72) Inventors:
  • MAZIASZ, Philip, J.
    Peoria, IL 61629-9510 (US)
  • SHINGLEDECKER, John, P.
    Peoria, IL 61629-9510 (US)
  • POLLARD, Michael, J.
    Peoria, IL 61629-9510 (US)

(74) Representative: Wagner, Karl H. 
Wagner & Geyer Partnerschaft Patent- und Rechtsanwälte Gewürzmühlstrasse 5
80538 München
80538 München (DE)

   


(54) HEAT AND CORROSION RESISTANT CAST AUSTENITIC STAINLESS STEEL ALLOY WITH IMPROVED HIGH TEMPERATURE STRENGTH