Weldingcity 10-pk Purple Tungsten Electrodes E3 Non-radioactive 040"x 7"

US $200

Duluth, Georgia, United States
May 26th

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Tungsten electrode with tribal-oxides mixed to have similar performance as 2% Thoriated tungsten. Non-radioactive premium quality tribal-oxides Tungsten electrodes (Purple) for replacement of 2% Thoraited TIG welding Tungsten electrode. 0.040" (1.0mm) by 7" length. You get one box of Ten (10) 2.0% Tribal-Oxide (Purple) Tungsten electrodes at this price. FREE SHIPPING within the U.S. Accessory Kits for 0.040" Tungsten Electrode Regular Setup 0.040" for 17/18/26 Torch Collet, Collet boy, Cup and Gasket Gas Lens Setup 0.040" for 17/18/26 Torch Collet, Gas lens, Cup and Gasket Large Gas Lens Setup 0.040" for 17/18/26 Torch Collet, Gas lens, Cup and Gasket Regular Setup 0.040" for 9/20/25 Torch Collet, Collet boy, Cup and Gasket Gas Lens Setup 0.040" for 9/20/25 Torch Collet, Gas lens, Cup and Gasket Large Gas Lens Setup 0.040" for 9/20/25 Torch Collet, Gas lens, Cup and Gasket Visit my eBay Store:WeldingCity -------------------------------------------------------Reference from Wiki----------------------------------------------------------------------- Name Tungsten Symbol W Atomic Number 74 Atomic Weight 183.84 Density 19.25 g/cm3 Melting Point 3422 °C Boiling Point 5555 °C Tungsten, also known as wolfram, is a chemical element with symbol W and atomic number 74. Gas tungsten arc welding (GTAW), also known as tungsten inert gas (TIG) welding, is an arc welding process that uses a non-consumable tungsten electrode to produce the weld. The electrode used in GTAW is made of tungsten or a tungsten alloy, because tungsten has the highest melting temperature among pure metals, at 3,422 °C (6,192 °F). As a result, the electrode is not consumed during welding, though some erosion (called burn-off) can occur. Electrodes can have either a clean finish or a ground finish—clean finish electrodes have been chemically cleaned, while ground finish electrodes have been ground to a uniform size and have a polished surface, making them optimal for heat conduction. The diameter of the electrode can vary between 0.5 and 6.4 millimeters (0.02 and 0.25 in), and their length can range from 75 to 610 millimeters (3.0 to 24.0 in). A number of tungsten alloys have been standardized by the International Organization for Standardization and the American Welding Society in ISO 6848 and AWS A5.12, respectively, for use in GTAW electrodes, and are summarized in the adjacent table. WP (GREEN) - Pure tungsten electrodes (classified as WP or EWP) are general purpose and low cost electrodes. They have poor heat resistance and electron emission. They find limited use in AC welding of e.g. magnesium and aluminum. WC (GREY) - Cerium oxide (or ceria) as an alloying element improves arc stability and ease of starting while decreasing burn-off. Cerium addition is not as effective as thorium but works well, and cerium is not radioactive. WL (2.0% BLUE, 1.5% GOLD) - An alloy of lanthanum oxide (or lantanas) has a similar effect as cerium, and is also not radioactive. WT ( RED) - Thorium oxide (or thorax) alloy electrodes offer excellent arc performance and starting, making them popular general purpose electrodes. However, it is somewhat radioactive, making inhalation of thorium vapors and dust a health risk, and disposal an environmental risk. Bonus: PayPal buyers get complimentary access to weldingcity's weekly newsletter.