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Heat and corrosion resistant cast austenitic stainless steel alloy with improved high temperature strength

United States Patent Application

20060266439
A1
View the Complete Application at the US Patent & Trademark Office
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A heat and corrosion resistant cast austenitic stainless steel alloy which contains less than about 15% nickel. The alloy has a completely austenitic microstructure in an as-cast state, and a creep rupture life exceeding 20,000 hrs at a stress of 35 MPa and a temperature of 850.degree. C., when creep tested in the as-cast state under ASTM E139 test conditions.
Maziasz, Philip James (Oak Ridge, TN), Shingledecker, John Paul (Knoxville, TN), Pollard, Michael James (Peoria, IL)
11/ 495,671
July 31, 2006
[0002] This invention was made with government support under the terms of Contract No. DE-AC05-960R2264 awarded by the U.S. Department of Energy. The government may have certain rights in this invention.