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You are here: Home » News » About tungsten electrode » The best tungsten for TIG welding aluminum

The best tungsten for TIG welding aluminum

Views:7     Author:Site Editor     Publish Time: 2017-06-02      Origin:Site

  With all of the different TIG machines around, with some offering inverter technology and all offering varying degrees of power, it can be tough to figure out the best tungsten for TIG welding aluminum. Many welders have shared stories of 2% thoriated electrodes balling up and pure tungsten welds leaving a mess of metal to grind down for the rest of the afternoon. With that in mind, what is the best tungsten electrode for TIG welding aluminum?

   The tungsten you choose will depend on a few factors. They include your particular machine, the thickness of the metal you’re welding, and the settings you have available. So here are a few tips and general rules that will help you start. The following electrodes can be used for TIG welding aluminum, but there are a few rules and caveats that will need to be discussed below:

  Orange: 2% ceriated (on AC)

  Blue: 2% lanthanated (AC and DC)

  Gold 1.5 lanthanated (AC and DC)

  Red: 2% thoriated (DC only)

  Green: pure tungsten (DC only)

  Don’t use green on the AC side since pure tungsten will ball up, especially if you’re using an inverter. Some welders have a particular favorite kind of tungsten. They may swear by thoriated or pure tungsten. The truth is that each kind of tungsten listed above can work if you have the right settings and the right application.

  It’s easy to mess up when TIG welding aluminum, so welders should choose tungsten ekectrodes prudently.


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