Home > Electrodes > AWS Class ER309/309L Mig & Tig Filler Welding Wire & Rod
Harshita Stainless in Delhi produces high-quality AWS Class ER309 and ER309L MIG/TIG filler wires and rods, ideal for welding different metals and high-alloy stainless steels. These nickel-chromium wires ensure excellent temperature and corrosion resistance, with ER309L featuring low-carbon content to reduce carbide precipitation. Manufactured under strict controls and certified for quality, they offer great arc stability, smooth feeding, and minimal spatter. These filler wires and rods are essential in industries needing strong performance, such as chemical, power generation, and industrial boilers, ensuring safe and reliable weld integrity.
AWS Class ER309 contains 22–24% chromium, 12–15% nickel, and 0.25% carbon, while ER309L has a reduced carbon content of ≤0.03%. Both exhibit tensile strength between 550–700 MPa, yield strength from 260–380 MPa, and elongation of 35–50%. The low carbon in ER309L prevents chromium carbide precipitation, enhancing intergranular corrosion resistance. Silicon (0.5–1%) and manganese (1–2%) ensure stable arc performance and good fluidity. Charpy toughness at ambient temperature is around 60 J. These precise compositions support sound fusion and properties when welding stainless to carbon or alloy steels.
| Classification | AWS A5.9, ER309/309L |
| 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 ER309/309L MIG & TIG Filler Metal 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.
Stainless Steel ER309/309L MIG Filler Wire provides strong, corrosion-resistant welds for dissimilar metals, ideal for welding stainless steel to carbon steel in industries requiring high-quality, durable joints.
Stainless Steel ER309/309L TIG Filler Wire is designed for welding dissimilar metals, offering excellent strength and corrosion resistance, suitable for high-temperature applications and critical joints in power generation and industrial sectors.
Stainless Steel ER309/309L TIG Filler Rod ensures high-strength, corrosion-resistant welds for dissimilar metal joints, ideal for applications in petrochemical, power generation, and industrial fabrication requiring reliable and durable performance.
Each AWS Class ER309/309L MIG and TIG Filler Welding Wire and Rod is carefully packed using high-quality materials to prevent any damage or defects during shipping. We focus clients satisfaction by assuring timely delivery through efficient transportation. All relevant documents pertaining to the product are provided to clients at the time of delivery guaranteeing a smooth transaction.
ER309/309L filler wires are preferred for joining austenitic stainless steels to carbon or low-alloy steels (dissimilar-metal welding), such as overlays on boiler tubes, chemical processing vessels, and industrial equipment. They resist oxidation and carburization at high temperatures, making them suitable for furnace parts, super-heater tubes, and heat exchangers. ER309L is chosen when corrosion resistance is crucial, like in food equipment, marine structures, and sanitary fittings. With both MIG and TIG welding, these fillers provide high-temperature strength, crack resistance, and durability in demanding industrial environments and cladding applications.
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