{"id":3397,"date":"2025-12-09T14:22:14","date_gmt":"2025-12-09T07:22:14","guid":{"rendered":"https:\/\/linkweldthailand.com\/%e0%b8%ab%e0%b8%a5%e0%b8%b1%e0%b8%81%e0%b8%81%e0%b8%b2%e0%b8%a3%e0%b9%80%e0%b8%a5%e0%b8%b7%e0%b8%ad%e0%b8%81%e0%b9%83%e0%b8%8a%e0%b9%89%e0%b8%a5%e0%b8%a7%e0%b8%94%e0%b9%80%e0%b8%8a%e0%b8%b7%e0%b9%88\/"},"modified":"2026-01-07T17:09:21","modified_gmt":"2026-01-07T10:09:21","slug":"principles-for-choosing-tungsten-welding-wire","status":"publish","type":"post","link":"https:\/\/linkweldthailand.com\/en\/principles-for-choosing-tungsten-welding-wire\/","title":{"rendered":"Principles for choosing tungsten welding wire"},"content":{"rendered":"<h2>\ud83e\uddd1\u200d\ud83c\udfedPrinciples for choosing tungsten welding wire \ud83e\uddd1\u200d\ud83c\udfed<\/h2>\n<p>\u26a1\ufe0f Tungsten electrodes are welding electrodes used for argon (TIG) welding. There are several types, which can be identified as follows:<br \/>\n\ud83d\udd34 Red (WT20)<br \/>\nUsed for welding general metals. Do not use with aluminum or magnesium.<br \/>\nThe tip must be sharpened before every use.<br \/>\nSuitable for Direct Current (DC) only.<br \/>\n\ud83d\udd35 Blue (WL20)<br \/>\nCan be used with Direct Current (DC) and Alternating Current (AC).<br \/>\nThe electrode tip should be sharpened before use.<br \/>\nSuitable for welding a wide range of metals such as stainless steel, silver, nickel alloys, titanium, and brass.<br \/>\n\u26aa\ufe0f Gray (WC20)<br \/>\nUsed with Direct Current (DC) and requires sharpening before use.<br \/>\nIdeal for low-current welding, thin materials, and automatic welding.<br \/>\nSuitable for metals such as steel, stainless steel, nickel alloys, and titanium.<br \/>\n\ud83d\udc9a Green (WP)<br \/>\nBest suited for aluminum welding.<br \/>\nMade of pure tungsten and should not be sharpened to a pointed tip when used for aluminum welding.<br \/>\n\ud83d\udc9b Gold (WL15)<br \/>\nUsed with Direct Current (DC).<br \/>\nThe key advantage of gold-tipped tungsten is that it is environmentally friendly and can replace red (WT20) tungsten electrodes.<br \/>\nHighly versatile\u2014suitable for welding steel, stainless steel, aluminum, and titanium.<\/p>\n<p><img decoding=\"async\" class=\"alignnone size-full wp-image-1102 cbio-above-fold\" src=\"https:\/\/linkweldthailand.com\/wp-content\/uploads\/2025\/12\/\u0e2b\u0e25\u0e31\u0e01\u0e01\u0e32\u0e23\u0e40\u0e25\u0e37\u0e2d\u0e01\u0e43\u0e0a\u0e49\u0e25\u0e27\u0e14\u0e40\u0e0a\u0e37\u0e48\u0e2d\u0e21\u0e17\u0e31\u0e07\u0e2a\u0e40\u0e15\u0e19-2.webp\" alt=\"\" width=\"768\" height=\"768\" srcset=\"https:\/\/linkweldthailand.com\/wp-content\/uploads\/2025\/12\/\u0e2b\u0e25\u0e31\u0e01\u0e01\u0e32\u0e23\u0e40\u0e25\u0e37\u0e2d\u0e01\u0e43\u0e0a\u0e49\u0e25\u0e27\u0e14\u0e40\u0e0a\u0e37\u0e48\u0e2d\u0e21\u0e17\u0e31\u0e07\u0e2a\u0e40\u0e15\u0e19-2.webp 768w, 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There are several types, which can be identified as follows: \ud83d\udd34 Red (WT20) Used for welding general metals. Do not use with aluminum or magnesium. The tip must be sharpened before every use. 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