Home > Electrodes > 309LMo MIG & TIG Filler Welding Wire & Rod
Mitchell Stainless, a reliable manufacturer and supplier based in Hamilton, New Zealand, offers premium-quality 309LMo MIG and TIG Filler Welding Wire and Rods designed for demanding welding applications. Known for consistency and dependable performance, these filler materials are produced to deliver strong, crack-resistant welds across a wide range of base metals. Mitchell Stainless focuses on quality control and smooth weldability, helping fabricators and welders achieve clean, reliable results. 309LMo filler wires and rods are especially valued for joining dissimilar steels and for use in corrosive and high-temperature environments.
309LMo MIG and TIG filler wires and rods are austenitic stainless steel consumables alloyed with chromium, nickel, and added molybdenum, along with low carbon content. The molybdenum enhances resistance to pitting and crevice corrosion, while low carbon reduces the risk of carbide precipitation. These fillers provide high tensile strength, excellent ductility, and strong crack resistance. Weld deposits maintain good toughness at elevated temperatures and offer corrosion resistance superior to standard 309 grades.
| Classification | AWS A5.9, 309LMo |
| Form | MIG spools, TIG cut lengths, Reels and Coils |
| Type Of Welding | Inert Gas Welding |
| Current | MIG-DCEP / TIG-DCEN |
| Diameters | .023”, .030”, .035”, .045”, 1/16”, 3/32”, 1/8” |
| Standard TIG straight lengths are available | 36” (914 mm) or 39” (1000 mm) lengths. Other lengths available upon request. |
| AWS 309LMo MIG & TIG Filler Metal Application & uses |
|
| C | Mn | Si | Cr | Ni | S | P | Mo | Cu |
| 0.03 max | 1.0-2.5 | 0.30-0.65 | 23-25 | 12-14 | 0.03 max | 0.03 max | 2-3 | 0.75 max |
| Tensile Strength (psi) | 86,000 psi (593 MPa) |
|---|---|
| Yield Strength (psi) | 57,000 psi (393 MPa) |
| Elongation (%) | 42% |
Contact us to get a quick quote for your requirement.
Alloy 309LMo MIG filler wire provides excellent corrosion resistance and high-temperature strength, suitable for welding in harsh environments like chemical processing and power generation.
Alloy 309LMo TIG filler wire offers superior resistance to pitting and crevice corrosion, ideal for high-temperature applications and joining dissimilar metals in challenging environments.
Alloy 309LMo TIG filler rod delivers robust corrosion resistance and strength, perfect for precision welding in harsh conditions, including chemical processing, petrochemical, and power generation industries.
We conduct extensive in-house testing to ensure that the highest quality standards are achieved by 309L Mo MIG and TIG Filler Welding Wires and Rods. Our customers know that we offer comprehensive third-party inspection services for these products to provide them with the assurance that these products are reliable and performing. We equally hold equal attention with regard to the timely supply of products for which you can place your orders in advance thus enabling you to also plan efficiently the other components of your project.
309LMo MIG and TIG filler welding wires and rods are widely used for welding dissimilar metals, such as stainless steel to carbon steel or low-alloy steel. Common applications include chemical processing equipment, petrochemical plants, heat exchangers, pressure vessels, and industrial fabrication exposed to corrosive or high-temperature conditions. They are also used for buffer layers and overlay welding where enhanced corrosion resistance is required. In New Zealand’s industrial and fabrication sectors, 309LMo fillers are trusted for producing durable, long-lasting welds in challenging service environments.
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