Tungsten content

Type

Diameter(mm)

Dia. tolerance(mm)

Length9(mm)

L tolerance(mm)

Liner rate

99.95%

Sintering Rod

Φ40-100

±3

<500

±5

±5%

Forged Rod

Φ20-80

±2

<800

±5

±2%

Ground Rod

Φ2-60

±0.1

<650

±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%

≤ 0.05%

≤ 0.01%

 W1

 ≥99.95%

 ≤0.05%

≤0.01%

 W2

 ≥99.92%

 ≤0.08%

 ≤0.01 %

Note: potassium is not counted in the impurity content