Metal alloys; niobium alloys, tantalum alloys, nickel alloys, cobalt alloys, titanium alloys, zirconium alloys, hafnium alloys, and specialty steel alloys in wrought and unwrought product forms, namely, ingot, billet, slab, plate, sheet, strip, coil, foil, bar, rod, wire, tube, pipe, shapes, forgings, castings, and powder