How Would You Choose Your Tungsten Electrodes?

One concern that many clients ask these days seems to be, “What is the appropriate Tungsten Electrode to utilize for my application?”

Choosing the right tungsten is critical to an effective TIG weld. You have to guarantee the right tungsten is utilized for the best type of power source, the material to be welded, as well as the density of the product. With a lot of different kinds of tungsten electrodes getable, finding out how to correctly pick the right tungsten for each application can substantially improve weld efficiency, as well as save time and money.

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Below are several of the most frequently created tungsten electrodes for TIG-AC, TIG DC, as well as welding Plasma:


1.7 to 2.2% Thorium Oxide

Best for usage in direct current applications using transformer-based consistent current power sources. Best for utilization on non-corroding metals, titanium alloys, nickel alloys, and copper alloys. Excellent DC arc begins, as well as stability, tool amperage range, tool erosion price, and tool propensity to spew.


0.7 to 0.9% Zirconium Oxide

Can be best utilized in A/C aluminum alloys, as well as magnesium alloys utilizing inverter or transformer-based continuous present power sources. Rounds well manage higher amperage compared to pure tungsten having less spitting, the better arc begins, as well as arc security than pure tungsten.


1.3 to 1.7% Lanthanum Oxide

Best for usage in direct current as an option to 2% thoriated utilizing inverter or transformer-based constant current source of power. Best for non-corroding steels, nickel alloys, titanium alloys, and copper alloys. Best D/C arc starts as well as security, low erosion rate, no spitting, and vast amperage variety.


1.8 to 2.2% Cerium Oxide

Best for utilization in A/C or D/C applications using inverter or transformer-based continuous current power sources. Good for low-alloyed steels, non-rusting steels, magnesium alloys, lightweight aluminum alloys, titanium alloys, copper alloys, and nickel alloys. Excellent ignition, as well as re-ignition properties, long service life, and excellent arc stability. Reduced disintegration price, best at reduced amperage range, nonspitting, great DC arc begins, as well as security.



Has 99.50% tungsten. Good for usage in A/C for lightweight aluminum alloys as well as magnesium alloys in reduced to medium amperage applications using a transformer-based consistent present source of power only. Balls very easily tend to spit at higher amperages. Used for non-critical welds just.

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