{"id":2679,"date":"2012-08-30T10:23:12","date_gmt":"2012-08-30T18:23:12","guid":{"rendered":"http:\/\/www.arc-zone.com\/blog\/carmenelectrode\/?p=2679"},"modified":"2019-09-06T15:20:33","modified_gmt":"2019-09-06T22:20:33","slug":"whats-the-buzz-about-tungsten","status":"publish","type":"post","link":"https:\/\/blog.arc-zone.com\/carmenelectrode\/2012\/08\/30\/whats-the-buzz-about-tungsten\/","title":{"rendered":"Tungsten: What\u2019s the buzz?"},"content":{"rendered":"<p>What\u2019s the buzz about Tungsten?\u00a0On the online welding bulletin boards over and over again I see questions having to do with\u00a0<a href=\"https:\/\/www.arc-zone.com\/index.php?main_page=index&amp;cPath=14\" target=\"_blank\" rel=\"noopener noreferrer\">tungsten electrodes for TIG\/GTAW and Plasma Arc Welding<\/a>:\u00a0 What is rare earth tungsten?\u00a0 Which tungsten is best?\u00a0 What\u2019s the difference between thoriated\/ ceriated\/ green\/ blue\/etc? Will \u201call purpose\u201d tungsten really work for everything?\u00a0 What about aluminum? Titanium?\u00a0 Stainless steel?\u00a0 Is thoriated tungsten really that dangerous?\u00a0 Does the brand of tungsten matter?<\/p>\n<p style=\"text-align: center;\"><a href=\"https:\/\/blog.arc-zone.com\/carmenelectrode\/2012\/08\/30\/whats-the-buzz-about-tungsten\/tungsten_tig_welding_electrode_w_electrode\/\" rel=\"attachment wp-att-2690\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-2690\" title=\"Tungsten\" src=\"https:\/\/blog.arc-zone.com\/carmenelectrode\/wp-content\/uploads\/tungsten_tig_welding_electrode_w_electrode-e1346350452787.jpeg\" alt=\"Tungsten\" width=\"500\" height=\"333\" \/><\/a><\/p>\n<p>At Arc-Zone we almost always recommend <a href=\"https:\/\/www.arc-zone.com\/index.php?main_page=index&amp;cPath=14_154\" target=\"_blank\" rel=\"noopener noreferrer\">ArcTime\u2122 Hybrid All-Purpose tungsten<\/a>.\u00a0 It is non radioactive and performs well on all machines and with all applications.\u00a0 But sometimes the tungsten (color) selection comes down to personal preference, or it may be spec\u2019d out\u2014this is often the case in automated welding processes or when working in certain government facilities, or anywhere that repeat-ability is imperative.<\/p>\n<p>You probably know that electrodes are color-coded, and if you buy from a trusted manufacturer or supplier you\u2019ll find that the colors and nomenclature adhere to the AWS and ISO standards:<\/p>\n<p><span style=\"text-decoration: underline;\"><strong>AWS Class\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Color\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Alloying Element<\/strong><\/span><\/p>\n<p><strong>EWP\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Green\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 None<\/strong><\/p>\n<p><strong>EWCe-2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Gray\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2% Cerium **<\/strong><\/p>\n<p><strong>EWLa-1.5\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Gold\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 1.5% Lanthanum<\/strong><\/p>\n<p><strong>EWLa-2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Blue\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2% Lanthanum<\/strong><\/p>\n<p><strong>EWTh-2\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Red\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 2% Thorium<\/strong><\/p>\n<p><strong>EWZr-1\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Brown\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Zirconium<\/strong><\/p>\n<p><strong>EWG\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Sky Blue\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Unspecified Rare Earth Alloys<\/strong><\/p>\n<p><strong>**note: \u00a0some manufacturers used to code the 2% Ceriated tungsten electrodes \u00a0Orange, but Gray is now the AWS\/ISO standard<\/strong><\/p>\n<p>And, if you buy from a trusted supplier or manufacturer you\u2019ll also be sure to get a better quality tungsten. \u00a0Factors including, how the tungsten is extruded from the earth, to how the various oxides are added in the manufacturing process, make a big difference in terms of purity and grain structure. High quality tungsten contributes to improved arc starting, better weld quality, and electrode longevity.<\/p>\n<p>So in a nutshell, Yes, Brand does Matter.<\/p>\n<p>A lot of folks prefer to buy products made in the U.S.A. \u00a0With tungsten electrodes, that is nearly impossible.\u00a0 First, there is no tungsten mining in the United States and at present, the largest producers of tungsten are China and Russia.\u00a0 Second,<a href=\"https:\/\/www.arc-zone.com\/index.php?main_page=index&amp;cPath=14_1735\" target=\"_blank\" rel=\"noopener noreferrer\"> GTP (formerly Sylvania) the lone U.S. manufacturer of tungsten electrodes<\/a> has pulled out of the tungsten electrode manufacturing business. \u00a0Whatever your supplier has left on the shelves is all there is. (Arc-Zone may still have\u00a0 few dusty boxes left, so let us know asap if you want some).<\/p>\n<p>It\u2019s not all bad news, however.\u00a0 There are some really great tungsten electrode options out there. <a href=\"https:\/\/www.arc-zone.com\/index.php?main_page=products_filters&amp;m=34&amp;cPath=14&amp;sort=0a&amp;layout=Grid\" target=\"_blank\" rel=\"noopener noreferrer\">CK Worldwide, <\/a>a leader in top-quality TIG\/GTAW welding accessories offers their own brand of tungsten. <a href=\"https:\/\/www.arc-zone.com\/index.php?main_page=products_filters&amp;cPath=14&amp;sort=0a&amp;layout=Grid&amp;m=32\">Diamond Ground Products<\/a> also offers a complete line of top quality tungsten blends.\u00a0<a href=\"https:\/\/www.arc-zone.com\/index.php?main_page=products_filters&amp;cPath=14&amp;sort=0a&amp;m=37&amp;layout=Grid\" target=\"_blank\" rel=\"noopener noreferrer\">Miller (formerly Weldcraft)<\/a> offers a line of premium tungsten electrodes (you can read more about the <a href=\"https:\/\/www.arc-zone.com\/blog\/joewelder\/2012\/03\/15\/avoid-tungsten-confusion-joes-guide-to-the-latest-tungsten-electrode-color-code-changes\/\" target=\"_blank\" rel=\"noopener noreferrer\">Weldcraft tungsten at JoeWelder.com<\/a>), and finally there\u2019s Arc-Zone\u2019s popular <a href=\"https:\/\/www.arc-zone.com\/index.php?main_page=index&amp;cPath=14_154\" target=\"_blank\" rel=\"noopener noreferrer\">ArcTime\u2122 Hybrid One Tungsten for All<\/a> (TIG and PAW), the <a href=\"https:\/\/www.arc-zone.com\/tri-mix-tungsten-electrodes-dgp-tri\" target=\"_blank\" rel=\"noopener noreferrer\">Tri-Mix tungsten<\/a>, and the <a href=\"https:\/\/www.arc-zone.com\/index.php?main_page=index&amp;cPath=14_2129\">Ice-T\u2122 Cryo Enhanced electrodes<\/a> (for automated high production applications).<\/p>\n<p>And if all these new choices confuse you, be sure to check out these publications from the technical experts at Arc-Zone.com:<\/p>\n<p><a href=\"https:\/\/www.arc-zone.com\/index.php?main_page=page&amp;id=55&amp;chapter=0\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>What\u2019s the Difference:\u00a0 Tungsten Electrodes<\/strong>,<\/a> by Jim Watson explains the differences you\u2019ll see between a quality tungsten electrode manufacturer and a substandard cheap import.<\/p>\n<p><a href=\"https:\/\/www.arc-zone.com\/pdf\/SelectingTungsten.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Guide to Tungsten Electrode Selection (.pdf)<\/strong><\/a>, covers determining the best tungsten alloy for your welding application, selecting the proper size electrode, and guide to tungsten grinders.<\/p>\n<p><a href=\"https:\/\/www.arc-zone.com\/pdf\/TungstenElectrodes.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Tungsten Electrodes: an Arc-Zone.com\u00ae Technical Focus Paper (.pdf)<\/strong><\/a> covers information on the history of tungsten mining, the properties of the various alloys, and tips for prepping the electrode for welding.<\/p>\n<p><a href=\"http:\/\/www.aws.org\/technical\/facts\/FACT-27.pdf\" target=\"_blank\" rel=\"noopener noreferrer\">American Welding Society Safety and Health Fact Sheet on thoriated tungsten electrodes (.pdf)<\/a><\/p>\n<p>Tungsten Image Credit: <a href=\"http:\/\/www.balticnordic.com\/images\/products\/z\/25\/tungsten_tig_welding_electrode_w_electrode_w_la_w__1283829736.jpg\" target=\"_blank\" rel=\"noopener noreferrer\">www.balticnordic.com<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>What\u2019s the buzz about Tungsten?\u00a0On the online welding bulletin boards over and over again I [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[47,27],"tags":[],"class_list":["post-2679","post","type-post","status-publish","format-standard","hentry","category-welding-education","category-welding-industry-news","entry","fw-tab-6 fw-tabr-4"],"aioseo_notices":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Tungsten: What\u2019s the buzz?<\/title>\n<meta name=\"description\" content=\"What is rare earth tungsten? 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Which tungsten is best? 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