Home > Electrodes > AWS Class ER309/309L SAW and FLUX
Andre Stainless provides AWS Class ER309/309L SAW wire matched with flux for submerged arc welding tasks involving stainless-to-carbon steel joints or overlay work. Based in Pulau Ujong, Singapore, Andre Stainless ensures product quality and reliable supply. ER309 produces welds with strong resistance to heat and oxidation, while the 309L version features low-carbon alloying to reduce sensitization. This SAW system delivers high deposition rates, stable weld quality, and solid arc behavior, making it perfect for industrial-grade stainless steel welding projects.
ER309/309L wires typically contain about 23‑25% chromium and 12‑14% nickel, with 309L having carbon below 0.04%. Tensile strength generally exceeds 580 MPa, with elongation near 30%. The flux is designed for deep penetration, clean slag, and smooth bead formation. This combination results in crack-resistant, corrosion-resistant weld metal with strong structural strength. ER309L enhances resistance to intergranular corrosion. The system supports flat-position SAW and delivers consistent weld performance in high-temperature or dissimilar metal service.
| 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* |
Contact us to get a quick quote for your requirement.
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.
This SAW combination is widely used for overlay cladding of carbon steel equipment, buffer layers, and for making transition joints in petrochemical plants, refineries, and power stations. ER309/309L is perfect for situations requiring stainless-to-carbon welds, including furnace components, piping systems, and pressure vessels. The low-carbon variant of ER309L is preferred in food, pharmaceutical, and chemical equipment to avoid sensitization. The system excels in high-volume welding tasks that demand consistent bead quality, corrosion resistance, and mechanical strength.
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