W6800 Thoriated Tungsten Fil

High purity Tungsten with 0.7% - 1% ThO2 added to produce a fine dispersion of thorium oxide in the wire. Typical analysis ppm: C 17, Al<1, Ca<1, Cr 1, Cu <1, Fe 6.7, C 17, Al<1, Ca<1, Cr 1, Cu <1, Fe 6.7, Mg <1, Mn<1, Ni 2.5, Si 2.9, Sn<1, Mo<8, K<2, Na<5 Thorium Oxide 0.7% - 1.0%, balance W.