Tungsten rods
For lighting, electrodes, and high-temperature furnace parts
Beyond tungsten wires – rods are also available. These are used for lighting, electrodes, high-temperature furnace parts, probe pins, etc., with the characteristic, the highest melting point among metals. Customers can choose rods from a variety of diameters, materials and finishing methodsfor various applications. We also offer the world’s highest level high-purity tungsten rods by strictly controlling raw material and processes, taking advantage of our integrated production.
| AW | Excellent high-temperature deformation resistance, blackening resistance, shocking resistance, less impurity gas, and long life. |
|---|---|
| AX | Compared with conventional materials, the recrystallization temperature is higher (50° to 200°C), dope hole is smaller, crystal structure after recrystallization is 3 to 4 times longer, and non-sagging performance is greatly improved. |
| EX | World’s No.1 grade filament material. It contains less impurity gas, excels in high temperature deformation resistance and corrosion resistance against evaporated metals including Al, Ni, Cr. Moreover, it has a long life. |
| DW | Long lifetime tungsten material that facilitates emission of thermo-electrons, and prevents grain growths and integranular fracture at the thermionic emission temperature. We respond to coil processing, tip processing, and assembly processing upon your request. |
| CY(PFW) | The most common pure tungsten material with good workability, excellent corrosion resistance, and less impurity gas contained. |
| EP,KT | Dramatically reduces discharge consumption resistance by dispersing crystal grains finely. |
| 4N-W 5N-W |
World’s highest grade high-purity tungsten material. Purity 4N-W ≧99.99％ 5N-W ≧99.999％ |
| Application | Non-sag | shock resistance |
Machinability | Discharge ability |
Dischage consumption resistance |
Wear resistance |
Corrosion resistance (VM) |
|
|---|---|---|---|---|---|---|---|---|
| AW | Filament for halogen lamps (thinner), Grids, Supports, Heaters, and Corona wires | ◎ | ○ | ○ | △ | ○ | ○ | △ |
| AX | Filament for ultrahigh temperature halogen lamps (thicker) | ◎ | ◎ | ◎ | △ | ○ | ○ | △ |
| EX | Vacuum evaporation, Heaters for high-temperature furnaces, Print wires for printers, Supports, Discharge electrodes, Probe pins | ○ | ○ | ◎ | △ | ◎ | ◎ | ◎ |
| DW | Electrodes, EDM wires Filaments for thermionic emission | ◎ | ◎ | ◎ | ◎ | ○ | △ | |
| CY (PFW) |
Structural materials and Heaters for furnaces | △ | △ | ◎ | △ | △ | ○ | ◎ |
| EP | Discharge electrodes, structural materials, pressure welded electrode | ○ | △ | ◎ | △ | ◎ | ◎ | △ |
| KT | Discharge electrodes, Structural materials | ○ | △ | ◎ | △ | ◎ | ◎ | △ |
| 4N-W 5N-W |
Electrodes, Heaters | △ | △ | ◎ | △ | ○ | ◎ | ○ |