TUNGSTEN LaYzr - CHARTREUSE
Principal Oxides: 1.5% Lanthanum, 0.08% Yttrium Oxides, 0.08% Zirconium
Non-Radioactive. Best for automated or robotic applications in Alternating Current (A/C) or Direct Current (D/C) due to low
voltage tolerance (changes in tip to work piece distance) using inverter or transformer based constant current power sources.
Good for low-alloyed steels, non corroding steels, aluminum alloys, magnesium alloys, titanium alloys, nickel alloys, copper alloys.
Very stable tip geometry, runs cooler than 2% Thoriated with longer life, low to medium amperage range. Very best low amperage starts
TIG welding electrodes usually contain small quantities of metallic oxides which can offer the following benefits:
• Facilitate arc starting
• Increase arc stability
• Improve current carrying capacity of the electrode
• Reduce risk of weld contamination
• Increase electrode life
Oxides used are primarily zirconium, thorium, lanthanum or cerium. Additions are usually 1% – 4%. These oxides greatly improve arc initiation, especially when direct current (DC) welding is employed. Thorium oxide (thoria) has been used for many years, having been found effective in terms of long life and thermal efficiency. Zirconium oxide (zirconia) has been commonly used for alternating (AC) TIG welding, normally for welding aluminum.