[2mm Wp Green]
[4mm Wy20 Blue]
[2.4mm Wc20 Grey]
[2.4mm Wes Wr20 Purple]
[1.0mm Wt20 Red]
[3.2mm Wl15 Gold]
[1.0mm Wz8 White]
Features:
Application: Tungsten electrodes for TIG welding.
WT20: 2% thoriated tungsten electrodes (AWS classification EWTh-2) contain a minimum of 97.30% tungsten and 1.70 to 2.20% thorium.
WY20: contains 1.8%-2.2% Yttria which its electron function of 2.8eV-3.2eV.
WL20: 2.00% lanthanated tungsten electrodes (AWS classification EWLa-2.0) have excellent arc starting, low-burn-off rate, good arc stability and excellent re-ignition characteristics-many of the same advantages as ceriated electrodes.
WC20: 2% ceriated tungsten electrodes (AWS classification EWCe-2) contain a minimum of 97.30% tungsten and 1.80 to 2.20% cerium.
WL15: 1.5% lanthanated tungsten electrodes (AWS classification EWLa-1.5) have excellent arc starting, low-burn-off rate, good arc stability and excellent re-ignition characteristics-many of the same advantages as ceriated electrodes.
WZ8: The most commonly used in alternating current welding,which contains a small amount of Zirconium oxide. Its electron work is 2.5eV-3.0eV
WR20: It is a non-radiation material. It is good to balance the electron mobility and evaporation rates, making tungsten electrodes to maximize their performances.
WES: It contains rare earth element, including 1.5% lanthanum oxide, 0.8% zirconia oxide and 0.8% yttrium oxide.
WP: Pure tungsten electrode is the earliest use of electrodes in TIG welding. It contains tungsten content minimum 99.5%, without other impurities.