Home > Electrodes > AWS Class ER309LSi Mig & Tig Filler Welding Wire & Rod
Khaleed Stainless is a well-respected manufacturer and supplier of AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod based in Riyadh, Saudi Arabia. They provide top-notch welding solutions tailored for critical industrial applications. The ER309LSi wire is specifically crafted for welding both similar and dissimilar stainless steels, making it perfect for joining stainless steel to carbon or low-alloy steels. Thanks to the added silicon, it enhances arc stability, improves the fluidity of the weld pool, and gives a polished bead appearance, which is especially beneficial in automated and semi-automatic welding processes. With its low carbon content, it effectively reduces carbide precipitation and boosts corrosion resistance.
AWS Class ER309LSi is composed of chromium (22–24%), nickel (12–14%), silicon (0.65–1.0%), manganese (≤2%), and carbon (≤0.03%). The low carbon content helps prevent intergranular corrosion, while the higher silicon content aids in deoxidation, resulting in smooth and clean welds. In terms of mechanical properties, it boasts a tensile strength of about 550–650 MPa, a yield strength of around 350 MPa, and an elongation of 30–35%. The weld deposits exhibit remarkable resistance to oxidation, scaling, and corrosion across a variety of service conditions.
| Classification | AWS A5.9, ER309LSi |
| 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 ER309LSi MIG & TIG Filler Metal Application & uses |
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| C | Cr | Ni | Mo | Mn | Si | P | S | Cu |
| 0.12 | 24.0-26.0 | 13.0-15.0 | 0.75 | 1.0-2.5 | 0.65-1.00 | 0.03 | 0.03 | 0.75 |
| Yield, kpsi: | 564 |
| Tensile Strength, kpsi: | 87 |
| Elongation%, min: | 41 |
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Stainless Steel ER309LSi MIG Filler Wire offers high-quality, silicon-enhanced welds for dissimilar metals, providing excellent corrosion resistance and bead appearance in applications like power generation and industrial fabrication.
Stainless Steel ER309LSi TIG Filler Wire delivers superior weld quality and corrosion resistance for dissimilar metal joints, ideal for high-temperature and critical applications in industries such as petrochemical and structural fabrication.
Stainless Steel ER309LSi TIG Filler Rod ensures strong, corrosion-resistant welds with enhanced fluidity for dissimilar metals, suitable for high-stress applications in power generation, chemical processing, and industrial sectors.
After the production of our AWS Class ER309LSi MIG and TIG Filler Welding Wire and Rod, our quality control team conducts thorough destructive and non-destructive testing using advanced equipment to ensure the superior performance and reliability of the product. Once the testing is complete we carefully package the filler wire and rod using appropriate materials to maintain their quality during shipping. We assure smooth and timely delivery to our customers. Guaranteeing on-time arrival without any delays. All necessary documentation, including certificates and test reports, are provided to the clients upon delivery.
AWS Class ER309LSi MIG and TIG Filler Rod Welding Wire is used to weld dissimilar metals, such as stainless steel to carbon steel, and is ideal for high temperature applications Enhanced silicon content improves weld fluidity and bead form to critical industrial te as power generation, petrochemical processing and structural construction -Suitable for applications These wires provide corrosion resistance and excellent strength, ensuring strong, reliable joints in areas exposed to high stresses and harsh conditions in, as well as increasing weld quality and strength.







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