Tungsten rods

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Highest melting point material

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.

Selection Guide

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	△	△	◎	△	○	◎	○

For more detailed information about Tungsten rods

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