Element Composition, wt.% (except as noted) Attaya (ANL/FPP/TM-282) V 91.89 Cr 4.00 Ti 4.00 H ..... B ..... C 50.00 ppm N 0.01 O 0.03 Mg ..... Al 0.02 Si 0.04 P 4 ppm S 3 ppm Cl 1.00 ppm K 0.1 ppm Mn ..... Fe 40 ppm Co ..... Ni 3 ppm Cu 2 ppm As 2 ppm Zr 1 ppm Nb 0.5 ppm Mo 4 ppm Ag 0.01 ppm Cd ..... Sn ..... Sb ..... Ba ..... Tb ..... Ta 0.2 ppm W 1 ppm Ir ..... Pb ..... Bi .....