{"product_id":"kobelco-flux-cored-wire-e309l-x-1-2","title":"Kobelco - Flux Cored Wire - E309L x 1.2","description":"\u003cp\u003eKobelco PREMIARC DW-309L is a premium, rutile-type stainless steel flux-cored welding wire (FCAW) engineered by Kobe Steel. It is a highly specialized industrial consumable designed primarily for dissimilar metal welding (joining stainless steel to carbon\/low-alloy steel) and for laying down corrosion-resistant buffer layers prior to cladding.\u003cbr\u003e\n \u003cbr\u003e\n \u003cbr\u003e\n Technical Classifications \u0026amp; Settings\u003cbr\u003e\n AWS Classification: E309LT1-1 or E309LT1-4 (under AWS A5.22).\u003cbr\u003e\n EN ISO Standard: EN ISO 17633-A T 23 12 L P C1 1 (or M21 1).\u003cbr\u003e\n Shielding Gas Options: Optimized to run with either 100% CO? (suffix -1) or a 75%–80% Argon + Balance CO? mixed gas blend (suffix -4).\u003cbr\u003e\n Operating Polarity: Runs on DCEP (Direct Current Electrode Positive \/ DC+).\u003cbr\u003e\n Welding Positions: All-position wire capable of flat, horizontal, overhead, and vertical-up operations.\u003cbr\u003e\n \u003cbr\u003e\n Core Metallurgical Purpose\u003cbr\u003e\n Because it features a significantly higher Alloy content (~23% Chromium and ~12% Nickel) than standard 308L wires, it acts as a metallurgical buffer.\u003cbr\u003e\n Dilution Tolerance: When welding stainless to mild carbon steel, the carbon steel heavily \"dilutes\" the weld pool. The excess Cr and Ni in the DW-309L ensure that even after dilution, the final weld bead retains enough alloying elements to remain strictly austenitic and corrosion-resistant.\u003cbr\u003e\n Low Carbon (? 0.04%): Minimizes the risk of chromium carbide precipitation at the grain boundaries, preserving maximum resistance to intergranular corrosion.High Ferrite Content: Typically targets a Ferrite Number between 8 to 15 FN, providing massive insurance against hot cracking (solidification cracking) when dealing with highly diluted joints.\u003cbr\u003e\n \u003cbr\u003e\n Primary Target Applications\u003cbr\u003e\n Dissimilar Joints: Joining standard austenitic stainless steels (like AISI 304, 304L, 316) directly to mild carbon steel or low-alloy structural steels.\u003cbr\u003e\n Buffer Layer Cladding: Depositing an initial underlayment layer on heavy carbon steel vessel walls before applying a top finishing layer of standard DW-308L or DW-316L.\u003cbr\u003e\n Clad Steel Sheet Welding: Joining the carbon steel backing portion of clad plates to the stainless steel lining interface.\u003cbr\u003e\n \u003cbr\u003e\n Key Performance Benefits\u003cbr\u003e\n Self-Peeling Slag: Utilizes a fast-freezing rutile flux formulation that creates a glassy slag blanket. As the metal cools, the slag cracks and lifts off cleanly by itself, eliminating aggressive wire brushing or chipping.\u003cbr\u003e\n Flawless Bead Aesthetics: Produces a wide, flat, and exceptionally smooth weld profile with virtually zero spatter, keeping nearby polished stainless steel plates pristine.\u003c\/p\u003e","brand":"Kobelco","offers":[{"title":"Default Title","offer_id":56031592251684,"sku":"KB.E309L.F120","price":16875.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1016\/4938\/3716\/files\/flux-cored-wire-p10769073996068.jpg?v=1787599810","url":"https:\/\/www.weldtools.in\/products\/kobelco-flux-cored-wire-e309l-x-1-2","provider":"weldtools","version":"1.0","type":"link"}