• The most common application of 309LMo is for overlaying carbon steels in order to achieve weld deposits with the same corrosion-resistant properties as 316 or 316L stainless steel The addition of molybdenum (Mo) to 309L increases the strength, hardness, and wear resistance of the deposit.

• ***READ THIS: The images are for reference only. Please check Picture #2 for an approximate quantity of electrodes per pound***

• All position welding of 309 series stainless to itself or to dissimilar steels such as 304L, 308L, 310, 316L, 321, and 347, martensitic grades 410, 420, 431, and ferritic stainless grades such as 430, 442, and 446; these stainless-steel grades can be welded to each other or to mild and carbon steels using 309LMo-16. Weld deposits exhibit high resistance to cracking and oxidation at temperatures up to 2000 °F

• Applications include furnace parts, kiln linings, heat treatment containers, forgings, and castings in chemical, petrochemical, power generation, and pharmaceutical equipment.

• These Electrodes are available in Sizes: 3/32" and 1/8" - Available Packages: 0.5 Lb, 1 Lb and 2 Lb - Select your option from the Size Menu - Check Picture #2 for an approximate number of electrodes per pound - 3/32" electrodes are 12" long and 1/8" electrodes are 14" long

Instructions: Use DC+ (reverse polarity); however, an AC machine with sufficient open-circuit voltage may be used. Bevel thick sections to a 60 degrees Vee. Clean the weld zone of all contaminants. Preheating 300 series stainless steel is NOT required. The diameter of the electrode chosen should be equal to the thickness of the base metal. Use the lowest possible welding current or increase your welding speed in order to avoid overheating or distortion of the base metal. Overheating stainless steel can degrade its composition and corrosion-resistant properties. The arc length should be kept as short as possible but do not touch the flux-coating of the electrode into the molten weld pool. Hold the electrode at a 15 degrees angle in the direction of travel. Stringer beads should be used in the flat, horizontal, and overhead positions. The weaving technique should be used for vertical welding but not to exceed two to three times the diameter of the electrode. Remove all slag before making additional passes. On the final pass, allow the part to cool down partially before removing the slag, then promote rapid cooling by quenching with a wet rag or compressed air. This will preserve the corrosion-resistant properties of the 300 series stainless. Do not allow to slow cool.