Introduction of Tungsten Electrodes for TIG Welding

Beijing Tian-Long Tungsten & Molydenum Co.,Ltd.(TLWM) is one of the most famous manufacturers of tungsten electrodes in China.It has been focusing its efforts on the development and production of tungsten electrodes for TIG welding since 1993.The abundant experiences in technology & production and the establishment of ISO9001:2000 quality control system form the guarantors for excellent quality of the electrodes.Now TLWM has an annual production capacity of 150 tons for all kinds of tungsten electrodes including Thoriated Tungsten, Ceriated Tungsten, Lanthanated Tungsten, Zirconiated Tungsten, Yttriated Tungsten and Pure Tungsten. Any kinds and any sizes of tungsten electrodes are available from TLWM upon the demands of customers.

Ceriated Tungsten Electrodes

Designation Oxide Additive Impurities Content Tungsten Content Color sign Nature Content % WC20 CeO2 1.8-2.2 <0.20 Balance Grey Characteristics: Ceriated Tungsten is a non-radioactive material. It is known to be especially good for DC welding with low amperage because it starts very easily at low amps and usually requires about 10% less amps to operate than thoriated material. It is very popular to be used for the welding of orbital tube, pipe, very small parts, short welding cycles and also where a specific number of welds are called and then the electrode is to be replaced.

Thoriated Tungsten Electrodes

Designation Oxide Additive Impurities Content Tungsten Content Color sign Nature Content % WT20 ThO2 1.7-2.2 <0.20 Balance Red Characteristics: Thoriated Tungsten is the most commonly used tungsten in America and some other countries and is a good general use tungsten. Especially, it performs well when overloaded with extra amperage. However,since it is a low-level radioavtive hazard many users have switched to other alternatives. This tungsten is used primarily for DC welding of carbon & stainless steels, nickel alloys and titanium,etc..

Lanthanated Tungsten Electrodes

Designation Oxide Additive Impurities Content Tungsten Content Color sign Nature Content % WL10 La2O2 0.8-1.2 <0.20 Balance Black WL15 La2O2 1.3-1.7 <0.20 Balance Golden yellow WT20 La2O2 1.8--1.2 <0.20 Balance Sky Blue Characteristics: Lanthanated Tungsten is a non-radioavtive material with good welding performance. Its electric conductivity is most closed to that of 2% Thoriated Tungsten. Welders can easily replace Thoriated Tungsten Electrodes with Lanthanated without any changes of welding program. In Europe and Japan, Lathanated Tungsten has been the most popular alternative to 2% Thoriated Tungsten for most applications. This tungsten is used primarily for DC welding but will also show good results for AC welding.