Home > Electrodes > AWS Class ER309LSi Mig & Tig Filler Welding Wire & Rod
The AWS Class ER309LSi MIG and TIG filler wire is a specialized stainless steel welding wire crafted for both MIG (GMAW) and TIG (GTAW) processes. It’s particularly effective for welding austenitic stainless steels like type 304 and stabilized 347, as well as for joining dissimilar metals where you need resistance to corrosion and high temperatures. Thanks to its added silicon content, this wire enhances arc stability, improves the fluidity of the weld bead, and gives a better surface finish, making it versatile for all-position welding. To achieve top-notch weld quality and corrosion resistance, it’s essential to clean the base metal properly, choose the right shielding gas, and control the heat input.
When it comes to typical weld metal composition, you can expect carbon levels at or below 0.03%, chromium between 23–25%, nickel from 12–14%, silicon ranging from 0.65–1.0%, manganese at 1–2.5%, and molybdenum up to 0.75%. The mechanical properties are impressive too, with a tensile strength around 614 MPa, yield strength of about 417 MPa, and an elongation of roughly 35%, ensuring strong, durable, and corrosion-resistant welds.
| 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 |
|
| 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 |
Contact us to get a quick quote for your requirement.
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.
You’ll often find ER309LSi filler wire in chemical processing plants, petrochemical equipment, food and beverage systems, and architectural stainless steel fabrication. It’s perfect for creating smooth, high-quality weld beads that resist corrosion and oxidation. Plus, it’s great for overlay or buffer layers and transition welds in tough service conditions.
©2024 Akor Stainless All Rights Reserved.
