Home > Electrodes > 309LMo MIG & TIG Filler Welding Wire & Rod
Kyaw Stainless, located in Naypyidaw, Myanmar, has earned a solid reputation as a reliable manufacturer and supplier of top-notch stainless steel welding consumables. Their offerings include the 309LMo MIG and TIG Filler Welding Wire and Rod, which are celebrated for their precision, durability, and adherence to international standards. Kyaw Stainless is dedicated to providing high-quality products that meet the needs of various industries, including construction, fabrication, and industrial applications. The 309LMo grade filler materials are specifically designed to offer outstanding resistance to corrosion and heat, ensuring robust welds even in the toughest conditions. With state-of-the-art production facilities and rigorous quality control measures, Kyaw Stainless plays a vital role in supporting Myanmar’s expanding infrastructure and industrial growth with dependable welding solutions.
The 309LMo MIG and TIG Filler Welding Wire and Rod boast a composition of roughly 23% Chromium, 13% Nickel, and 2.5% Molybdenum, which grants them remarkable resistance to oxidation and corrosion. This alloy is also formulated with low carbon content to minimize carbide precipitation and enhance the integrity of the welds. In terms of mechanical properties, they feature a tensile strength of about 580 MPa, a yield strength of 320 MPa, and an elongation of around 35%. These well-balanced characteristics ensure high toughness, crack resistance, and reliable performance even under elevated temperatures and harsh service conditions.
| 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% |
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Excellent corrosion resistance and high-temperature strength, suitable for welding in harsh environments like chemical processing and power generation.
Superior resistance to pitting and crevice corrosion, ideal for high-temperature applications and joining dissimilar metals in challenging environments.
Robust corrosion resistance and strength, perfect for precision welding in harsh conditions, including chemical processing, petrochemical, and power generation industries.
309LMo TIG and MIG filler rod and wire are used extensively across industries like power generation, chemical processing, and marine engineering. They are specifically suitable for joining stainless steel with carbon or mild steel, cladding, and heat exchanger fabrication, storage tank fabrication, and pressure vessel fabrication. They are used in high-temperature and corrosive service conditions of refinery equipment, pulp and paper industries, and offshore structures. Their higher oxidation resistance and weldability make them ideal for furnace parts, boilers, and structural uses that demand durability and long-term performance
The 309LMo MIG and TIG Filler Welding Wire and Rod are particularly effective for welding dissimilar metals, making them perfect for joining stainless steels with carbon or low-alloy steels. They excel in overlay and cladding applications that demand superior corrosion resistance in environments rich in acids, chlorides, and sulfur compounds. Commonly found in industries such as chemical processing, petrochemical, power generation, marine, and pulp and paper, these alloys’ excellent mechanical and heat-resistant properties make them ideal for furnace components, heat exchangers, pressure vessels, and piping systems that are subjected to high temperatures and corrosive environments.







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