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Chanchai Stainless is a reputable manufacturer and supplier of Alloy 309LMo SAW and Flux based in Bangkok, Thailand. They provide top-notch welding solutions tailored for demanding industrial needs. Alloy 309LMo is a stainless steel welding material specifically crafted for submerged arc welding (SAW), known for its excellent weldability and impressive resistance to corrosion, oxidation, and scaling. The inclusion of molybdenum boosts its resistance to pitting and crevice corrosion, making it ideal for tough environments. When paired with flux, it guarantees smooth weld deposits, high mechanical strength, and long-lasting durability. This alloy is commonly used across petrochemical, chemical processing, marine, and power generation sectors.
Alloy 309LMo SAW and Flux consists of chromium (22–24%), nickel (12–14%), and molybdenum (2–3%), along with carefully controlled amounts of carbon, silicon, manganese, phosphorus, and sulfur. The blend of chromium and nickel provides exceptional resistance to oxidation and thermal stress, while molybdenum adds an extra layer of protection against localized corrosion in environments rich in chlorides or acids. On the mechanical side, it boasts high tensile strength, yield strength, and impact toughness, along with strong crack resistance. Its stable microstructure ensures consistent weld quality, smooth arc stability, and durability, making it a reliable choice for both high and low-temperature applications.
| 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 (Submerged Arc Welding) and flux are primarily used for welding stainless steels and high-temperature applications in industries such as petrochemical, power generation, and marine. The alloy provides excellent resistance to oxidation and corrosion, making it ideal for welding dissimilar metals, heat exchangers, pressure vessels and equipment exposed to aggressive environments. The flux ensures smooth welds, improves arc stability, and enhances the overall weld quality, providing strong, durable joints that withstand harsh conditions.
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