Tungsten rod

Tungsten rod introduction

1, Grade: W1, W2, W3, W4
2, Diameter: 2.0-100.0mm
3, Length: 50-1000mm
4, Density: Purity 99.92%, 99.98% can also be achieved if special demanded.
5, Surface: Sintering surface, Forged surface, Ground surface

Tungsten's unique properties as a high performance material, including a melting point of 3410' C, low vapor pressure at elevated temperatures and low coefficient of thermal expansion, make it of value in a variety of high temperature products and processes. Among them are glass-to-metal seal parts and support parts for lighting and electronics, silicon rectifier stud mounts and high temperature furnace components.

Tungsten rod availability

Tungsten rod is manufactured as random length pieces or cut to customers' desired lengths. Other, closer tolerances can be quoted on request. In addition, there are three different surface processes or finishes which are provided, depending upon the desired end use.

Tungsten rod surface finish

Black - Surface is "as swaged" or "as drawn"; retaining a coating of processing lubricants and oxides.
Cleaned - Surface is chemically cleaned to remove all lubricants and oxides.
Ground - Surface is centerless ground to remove all coating and to achieve precise diameter control.

General Specifications of tungsten rod

Type	Diameter (mm)	Dia. tolerance (mm)	Length (mm)	L tolerance (mm)	Liner rate
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%

Tungsten rod application

The tungsten rod can be widely used in illumination, heater and the electronic mechanical engineering, etc. The tungsten rod can be used in making the electricity photo source, the automobile and the tractor light bulb, make lattice side rod, framework, leading wire, electrode, heater, contact materials and so on.