TANTALUM ALLOY TUBING DEVELOPMENT PROGRAM.
Interim technical engineering rept. no. 4, 15 Apr15 Jul 64,
ALLEGHENY LUDLUM STEEL CORP BRACKENRIDGE PA
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Data obtained from the initial breakdown extrusion of the T-222 alloy are presented. The extrusion to 2.060-inch O.D. by 1.440-inch I.D. tube hollow of both the Ta-10W and T-222 alloys has been achieved from a 5-inch liner on a 2,200-ton press. Extrusion data and photographs of the tube hollows in the as-extruded condition are presented. The T-222 alloy proved to be the stiffer and more difficult to extrude. Author