Home > Electrodes > AWS Class ER309/309L SAW and FLUX
Lecong Stainless Manufacturer and Suppliers in Da Nang, Vietnam, offers high-quality stainless steel welding consumables, including AWS Class ER309/309L SAW wire and flux combinations. This wire is designed for submerged arc welding and is used to join different metals, such as stainless steel to carbon steel or low-alloy steels. The low-carbon version, marked with “L,” helps reduce carbide precipitation, which improves corrosion resistance in welded joints. When paired with optimized flux, it achieves deep penetration, stable arc performance, and high deposition efficiency. Lecong Stainless provides ER309/309L SAW and flux solutions that meet international standards for reliable performance in industrial and structural applications.
ER309/309L SAW wire typically contains 23–25% chromium, 12–14% nickel, and ≤0.03% carbon in the “L” grade, enhancing intergranular corrosion resistance. Mechanical properties include a tensile strength of 80,000–85,000 psi, a yield strength of around 55,000–60,000 psi, and an elongation of 30–35%. Weld deposits show high toughness, oxidation resistance, and corrosion resistance in high-temperature and corrosive conditions. With the right flux, it allows for smooth bead formation, minimizes spatter, and maintains arc stability, making it ideal for welding stainless steel overlays and joining different metals using submerged arc processes.
| Classification | AWS A5.9, ER309/309L |
| Form | Welding Fluxes and Wires |
| Type Of Welding | Submerged Arc Welding |
| Thickness available | Upto 4 mm |
| AWS ER309/309L SAW & Flux Application & uses |
|
| C | Cr | Ni | Mo | Mn | Si | P | S | Cu |
| 0.03 | 23.0-25.0 | 12.0-14.0 | 0.75 | 1.0-2.5 | 0.30-0.65 | 0.03 | 0.03 | 0.75 |
| Tensile Strength, kpsi: | 86* |
| Yield Strength, kpsi: | 58* |
| Elongation %: | 40* |
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Alloy ER309/309L SAW and Flux are used for submerged arc welding of dissimilar metals and stainless steel, providing strong, corrosion-resistant welds with a clean, slag-free finish for various applications.
AWS A5.9 ER309/309L SAW and Flux Welding Wire is designed for submerged arc welding of dissimilar metals and stainless steel, offering strong welds, high corrosion resistance, and a clean, efficient finish.
AWS Class ER309/309L Submerged Arc Welding Flux ensures high-quality welds with excellent arc stability, minimal spatter, and a clean, slag-free finish, ideal for welding dissimilar metals and stainless steel.
We conduct rigorous in-house testing on our AWS Class ER309/309L SAW wire and flux to ensure optimal quality and performance. Our products undergo thorough inspections to meet industry standards, guaranteeing reliability and durability. With a focus on efficiency. We assure prompt delivery. To meet the needs of our clients without compromising on product excellence.
AWS Class ER309/309L SAW and flux are widely used for welding different steel types, especially stainless steel to carbon steel or low-alloy steels. They are often used for stainless steel cladding or surfacing to enhance corrosion resistance on carbon steel surfaces. Applications include pressure vessels, chemical tanks, refinery equipment, boilers, and heat exchangers. This wire and flux combination ensures dependable performance in industries such as petrochemical, oil and gas, and power generation. Lecong Stainless supplies ER309/309L SAW and flux throughout Vietnam and internationally, providing high-quality, corrosion-resistant welds for industrial fabrication and maintenance projects.















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