Tungsten content

Type

Diameter

(mm)

Dia.tolerance

(mm)

Length

(mm)

L tolerance

(mm)

Liner

rate

99.95%

Sintering rod

40-100

±3

500max

±5

±5%

Froged rod

20-80

±2

800max

±5

±2%

Ground rod

2-60

±0.1

650max

±1

±0.5%

Application

Be used for drawing tungsten wires, electrodes, heaters in high temperature vacuum furnace and so on.

Grade

Tungsten content

Contents of Impurity Elements

Total Content

Content of each element

WAL1,WAL2

99.95%min

0.05%nax

0.01%max

W1

99.95%min

0.05%max

0.01%max

W2

99.92%min

0.08%max

0.01%max

NOTE:Potassium is not counted in the impurity content