ultra-pure tungsten bar

Purity:W 99.999%min Common uses: as electrode material for precision electron and high precision resistance industries.

Appearance:Silvery metallic bars

Common uses:  as electrode material for precision electron and high precision resistance industries.

Specification:99.999%min  (Calculated by subtractive method,excluding gas content)

Impurities content:(ppm,max)

Li	0.03	Be	0.3	B	0.1	F	1.0
Na	0.5	Mg	0.2	Al	0.6	Si	1.5
P	1.0	S	1.0	Cl	1.0	K	0.07
Ca	0.5	V	0.6	Cr	1.5	Mn	0.4
Fe	1.5	Co	0.4	Ni	0.5	Cu	0. 5
Zn	0.3	Ga	0.1	Ge	0.2	As	0.5
Zr	0.2	Nb	0.2	Mo	0.8	Ag	0.05
Cd	0.2	In	0.1	Sn	1.0	Sb	0.7
Ba	0.5	Pt	0.2	Au	0.1	Hg	1.5
Pb	0.1	Bi	0.3	Th	0.0005	U	0.0005
H	5	N	5	O	20

Package:Special case, containing about 25kg net each.

ultra-pure tungsten bar