Home > Electrodes > Alloy 309LMo SAW and Flux
Lecong Stainless Manufacturer and Suppliers in Da Nang, Vietnam, provides quality stainless steel welding consumables, including Alloy 309LMo SAW wire and flux. This wire is designed for welding stainless steels that require better corrosion resistance. It contains molybdenum, which improves resistance to pitting and crevice corrosion. The low-carbon design minimizes carbide precipitation, ensuring strong weld integrity under corrosive conditions. When used with suitable flux, Alloy 309LMo provides excellent arc stability, high deposition efficiency, and a smooth weld bead appearance. Lecong Stainless supplies this SAW wire and flux solution to industries in Vietnam and around the world, ensuring reliable welds in critical, corrosion-sensitive environments.
Alloy 309LMo SAW wire typically contains around 23% chromium, 13% nickel, 2–3% molybdenum, and ≤0.03% carbon. This composition offers strong corrosion resistance, especially against chlorides and reducing acids. Mechanical properties include a tensile strength of about 80,000–85,000 psi, a yield strength of approximately 55,000–60,000 psi, and an elongation of 30–35%. The addition of molybdenum improves resistance to pitting and crevice corrosion. Weld deposits made with the right flux exhibit toughness, oxidation resistance, and durability in high-temperature environments. This wire performs reliably in submerged arc welding for stainless steel structures and overlays that face challenging operating conditions.
| Classification | AWS A5.9, 309LMo |
| Form | Welding Fluxes and Wires |
| Type Of Welding | Submerged Arc Welding |
| Thickness available | Upto 4 mm |
| AWS 309LMo SAW & Flux 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 | 89,900 |
|---|---|
| Yield Strength | 63,800 |
| Elongation (%) | 42% |
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Alloy 309LMo SAW/Flux Welding Wire is used for submerged arc welding, providing high resistance to corrosion and oxidation, excellent weld strength, and a clean, slag-free finish for demanding applications.
Industrial 309LMo SAW Wire & Flux are used for submerged arc welding, offering high corrosion and oxidation resistance, strong welds, and a clean, slag-free finish, suitable for harsh industrial applications.
SFA A5.9 309LMo SAW & Flux are specified for submerged arc welding, providing superior corrosion and oxidation resistance, strong welds, and a clean, slag-free finish for demanding industrial environments.
We provide comprehensive documentation for our Alloy 309LMo SAW and Flux, ensuring transparency and reliability. This includes a commercial invoice, packaging list, fumigation certificate, heat treatment chart and quality assurance plan. A NABL-approved lab test report guarantees adherence to strict standards. Additionally, we offer various test certificates, including MTC as per EN 10204/3.1b, PMI, 100% radiography test and a Third-Party Inspection Certificate. These measures ensure complete client satisfaction and product integrity.
Alloy 309LMo SAW and flux are frequently used for welding different steel types, cladding, and overlays where enhanced corrosion resistance is crucial. Applications include desalination plants, marine settings, chemical processing units, offshore platforms, and refinery components. The added molybdenum improves weld performance in situations with high chloride levels, making it suitable for tanks, pressure vessels, and pipelines carrying corrosive materials. It is also used for surfacing operations to extend the service life of carbon steel equipment. Lecong Stainless supplies Alloy 309LMo SAW and flux throughout Vietnam and globally, ensuring strong, corrosion-resistant welds for industries needing durability in harsh conditions.
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