Longevity WeldAll 160PI/200PI/250PI - Manual (Page 32)

160PI/200PI/250PI AC/DC Series IGBT Machines
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Selecting the Right Tungsten Electrodes:
Selecting the right tungsten is crucial to a successful TIG weld. You have to insure the correct tungsten is used
for the type of metal you are welding, the type of technology used in your welder such as transformer or
inverter, and the thickness of the metal you will need to weld. This leaves you with a variety sizes ranging from
1/16 to 1/8” and the types of tungstens such as the Pure Tungsten (TP), 2% Thoriated Tungsten (TT2), 2%
Ceriated Tungsten (TC2), and 2% Lanthanated Tungsten (TL2). Fortunately, LONGEVITY offers high quality
tungsten electrodes and explains which tungsten is required for the right application. Pure Tungsten (TP) –
(green tipped) - Pure tungsten readily forms a ball on the end. It is designed for use with transformer-based
power sources for AC welding of aluminum. Unfortunately, LONGEVITY does not carry transformer based
technology considering the size and weight of TRANSFORMER welders. Therefore, this tungsten is rarely sold
buy our sales staff
2% Thoriated Tungsten (TT2) – (red tipped) - This tungsten is the most common tungsten currently being used
with LONGEVITY DC TIG. It is generally utilized for DC welding of mild steel, bronze, and stainless steel and
basically all metals except aluminum and offers excellent performance. A drawback is that this tungsten has a
low level radiation hazard and the fact that they no recommend to weld aluminum. We recommend this tungsten
with our stand alone DC only TIG Welders, our WeldMax series multi-purpose welders, which feature DC TIG
welders. The 2% Thoriated Tungsten works well with Inverter Welders
2% Ceriated Tungsten (TC2) – (grey/orange tipped) – 2% ceriated is an excellent substitute for 2% thoriated
tungsten and is designed for transformer and inverter based power sources. For Transformer DC welding, this
tungsten requires less amperage to start so it is recommended for thinner metals. It offers a stable arc and can be
used for both AC and DC welding with inverter power sources and is our most popular sold tungsten because it
can be used to weld every type of metal in both AC / DC modes in our LONGEVITY INVETER TIG welders.
We recommend this unit with our ArcMate 200AMP ACDC TIG/STICK unit or our WeldAll series multi
functional welders and plasma cutters because of the versatility of AC DC welding.
2% Lanthanated Tungsten (TL2) – blue tip – 2% lanthanated is probably the most popular substitute for 2%
thoriated tungsten. Offering a longer life span than the 2% thoriated tungstens, it is a nice a nice alternative, but
not as recommended as our 2% Thoriated Tungsten. This tungsten can be used with both transformer and
inverter technology on both AC DC modes.