{"product_id":"tungsten-electrode-sieco-wt20-red","title":"Tungsten Electrode Sieco WT20 Red","description":"\u003cp\u003eWT20 Thoriated Tungsten Electrode is an industrial-grade TIG welding needle. Identified globally by its Red color code tip, it is doped with 2% thorium oxide (ThO?). It is the most widely used electrode for high-amperage Direct Current (DC) TIG welding.\u003cbr\u003e\n \u003cbr\u003e\n The WT20 electrode is favored by professional fabricators due to its exceptional arc stability, high current-carrying capacity, and low burn-off rate. The addition of 2% thorium oxide lowers the work function of the tungsten, allowing it to emit electrons easily. \u003cbr\u003e\n \u003cbr\u003e\n This results in instant, reliable High-Frequency (HF) arc striking even at lower starting voltages.Because it operates far below its melting threshold, the needle maintains a sharp ground tip profile for long periods without splitting or \"spitting\" tungsten into the weld pool. \u003cbr\u003e\n \u003cbr\u003e\n It is optimized exclusively for DC TIG welding (DCEN \/ straight polarity) on structural carbon steels, stainless steel pipe joints, nickel alloys, copper, and titanium structures.\u003cbr\u003e\n \u003cbr\u003e\n Note: Due to the trace radioactivity of the thorium dopant, always use local exhaust extraction or a dedicated dust-collection grinder when sharpening the needle tip.\u003c\/p\u003e","brand":"Sieco","offers":[{"title":"1.6 \/ 10","offer_id":56031567872292,"sku":"WET16150","price":260.0,"currency_code":"INR","in_stock":true},{"title":"2.4 \/ 10","offer_id":56031567905060,"sku":"WET24150","price":580.0,"currency_code":"INR","in_stock":true},{"title":"3 \/ 10","offer_id":56031567937828,"sku":"WET30150","price":770.0,"currency_code":"INR","in_stock":false},{"title":"4 \/ 10","offer_id":56031567970596,"sku":"WET40150","price":1720.0,"currency_code":"INR","in_stock":true},{"title":"4.8 \/ 10","offer_id":56031568003364,"sku":"WET48150","price":1850.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1016\/4938\/3716\/files\/512tm58y-gL-p10769067770148.jpg?v=1787599538","url":"https:\/\/www.weldtools.in\/products\/tungsten-electrode-sieco-wt20-red","provider":"weldtools","version":"1.0","type":"link"}