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Singapore-based Andre Stainless provides Alloy 309LMo SAW wires and flux sets engineered for dissimilar metal submerged arc welding, buffer layers, and high-temperature overlays. This product brings together the best of Type 309L stainless, supplemented with molybdenum, for enhanced corrosion resistance. Andre Stainless assures consistent quality and availability to support hassle-free welding operations within Pulau Ujong‘s fabrication and industrial industries. Designed to provide consistent welding performance, reduced dilution, and great bead appearance, Alloy 309LMo SAW system is ideal for vessel builders, power plants, and petrochemical plants needing robust and efficient welding consumables.
The Alloy 309LMo SAW wire has approximately 23–25% chromium, 12–14% nickel, and 2–3% molybdenum. Carbon level is below 0.04% to minimize sensitization. The weld deposit provides tensile strength of over 580 MPa and elongation of more than 30%. Its composition provides superior resistance to pitting and intergranular corrosion. The flux chemistry facilitates deep penetration and uniform slag removal in SAW mode. The blend provides crack-insensitive welds, high toughness, and good arc strength well suited for mechanized welding of overlay and transition welding.
| 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.
309LMo SAW systems are used extensively for cladding low-alloy or carbon steels, buffer layers, and transition joints in refineries, chemical plants, and food–processing equipment. Ideal for surfacing storage vessels, reactors, and pipelines where corrosion resistance and metallurgical compatibility are required. The addition of molybdenum enhances performance in acidic or chloride environments. Applicable to mechanized welding on a large scale, the system offers high deposition rates and consistent weld quality. Typical uses are overlaying steels for corrosion resistance, joining dissimilar metals, and strengthening pressure vessels and heat exchangers with stainless resistance.
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