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CERIATED
Ceriated tungsten electrodes (AWS classification EWCe-2)
contain a minimum of 97.30 percent tungsten and 1.80 to 2.20
percent cerium and are referred to as 2 percent ceriated.
Ceriated tungsten's perform best in DC welding at low current
settings. They have excellent arc starts at low amperages and
become popular in such applications as orbital tube welding,
thin sheet metal work. They are best used to weld carbon steel,
stainless steel, nickel alloys, and titanium, and in some cases it
can replace 2 percent thoriated electrodes. Ceriated tungsten is
best suited for lower amperages it should last longer than
Thoriated tungsten higher amperage applications are best left
to Thoriated or Lanthanated tungsten.
LANTHANATED
Lanthanated tungsten electrodes (AWS classification EWLa-1.5)
contain a minimum of 97.80 percent tungsten and 1.30 percent
to 1.70 percent lanthanum, and are known as 1.5 percent
lanthanated. These electrodes have excellent arc starting, a low
burn off rate, good arc stability, and excellent re-ignition
characteristics. Lanthanated tungsten also shares the
conductivity characteristics of 2 percent thoriated tungsten.
Lanthanated tungsten electrodes are ideal if you want to
optimize your welding capabilities. They work well on AC or DC
electrode negative with a pointed end, or they can be balled
for use with AC sine wave power sources. Lanthanated
tungsten maintains a sharpened point well, which is an
advantage for welding steel and stainless steel on DC or AC
from square wave power sources.
ZIRCONIATED
Zirconiated tungsten electrodes (AWS classification EWZr-1)
contain a minimum of 99.10 percent tungsten and 0.15 to 0.40
percent zirconium. Most commonly used for AC welding
Zirconiated tungsten produces a very stable arc and is resistant
to tungsten spitting. It is ideal for AC welding because it retains
a balled tip and has a high resistance to contamination. Its
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