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Kawecki Berylco Industries, Inc.

James A McGurty

Paul J Scherbner

The presence of yttrium and/or related rare earth elements in amounts ranging from a positive amount to up to but not including 0.1% by weight in alloys described in U.S. Pat. No. 4,086,085 issued Apr. 25, 1979 significantly improves the hot workability and resistance to grain growth of said alloys.

Austenitic iron alloys having yttrium

Austenitic iron base alloys containing nickel and with relatively high aluminum and chromium contents within ranges which are critical to the formation of an aluminum oxide protective film when the alloys are exposed to oxidizing environments at temperatures up to about 1700.degree. F. The alloys exhibit excellent high temperature strength and oxidation resistance.

Austenitic iron alloys

A heat treatable nickel-base alloy consisting essentially of between about 0.6 to 3.0 weight percent beryllium, between about 0.0 to 4.5 weight percent titanium, between about 0.0 to 4.5 weight percent zirconium, between about 0.0 to 4.5 weight percent hafnium, between about 0.01 to 1.0 weight percent of a rare earth element, and the balance nickel.

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Reading, PA, United States of America

James A McGurty