Product available in Size 2.2mm TG-X308L (R308LT1-5) : Applicable for 304 and 304L type steels TG-X316L (R316LT1-5) : Applicable for 316 and 316L type steels. TG-X 308L/316L are stainless steel flux-cored rods for TIG welding without back shielding , Used for root pass to produce slag that protects reverse side bead from oxidation by the atmosphere. Please Whatsapp us for more details and quotations.