Home > Electrodes > AWS Class ER320LR Mig & Tig Filler Welding Wire & Rod
Aditya Stainless, a top-notch manufacturer and supplier based in Kolkata, India, specializes in high-quality AWS Class ER320LR MIG and TIG Filler Welding Wire and Rod. This product is expertly crafted for welding austenitic stainless steels that are highly resistant to corrosion. With its carefully controlled low carbon and stabilized compositions, ER320LR offers exceptional protection against intergranular corrosion, stress corrosion cracking, and general chemical attacks. It’s particularly effective for welding alloys in both strong oxidizing and reducing environments. Thanks to its excellent weldability, arc stability, and resistance to carbide precipitation, this filler material is a go-to choice in industries like chemical processing, pharmaceuticals, and pulp and paper, ensuring durable and reliable weld joints.
ER320LR is composed of about 19–21% chromium, 33–37% nickel, 2–3% molybdenum, and trace amounts of columbium (niobium), all while maintaining a very low carbon content (≤0.02%). These elements significantly boost its corrosion resistance in tough chemical settings, particularly against nitric and sulfuric acids. The typical mechanical properties include a tensile strength of at least 75,000 psi (520 MPa), yield strength of at least 50,000 psi (345 MPa), and an elongation of around 30%. Its stabilized chemistry is key in preventing intergranular corrosion after welding and during prolonged service, making it perfect for pressure-containing equipment and components that face chemical and thermal stress.
| Classification | AWS A5.9, ER320LR |
| 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 ER320LR MIG & TIG Filler Metal Application & uses |
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| C | Cr | Ni | Mo | Mn | Si | P | S | Nb | Cu 8XC min/0.40 max |
| 0.025 | 19.0-21.0 | 32.0-36.0 | 2.0-3.0 | 1.5-2.0 | 0.15 | 0.015 | 0.02 | 3.0-4.0 | 0.75 |
| Tensile Strength, ksi: | 86* |
| Yield Strength, ksi: | 58* |
| Elongation %: | 35* |
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This welding wire is available in sizes ranging from 0.8mm to 1.6mm in diameter. It is designed for high corrosion resistance, particularly in chloride-containing environments. The ER320LR alloy ensures stability in both high and low temperatures, making it ideal for demanding applications.
Available in sizes from 1.0mm to 2.4mm in diameter, this TIG filler wire offers excellent corrosion resistance, especially in aggressive chemical environments. The low carbon content of ER320LR minimizes carbide precipitation, ensuring enhanced durability and performance. It is suitable for welding similar alloys and dissimilar metals.
These rods come in diameters ranging from 1.6mm to 4.8mm, providing versatility for various welding needs. They offer superior corrosion resistance, particularly against intergranular and stress corrosion cracking. The ER320LR alloy composition makes them ideal for use in high-stress and high-temperature applications.
we conduct rigorous internal tests on our AWS Class ER320LR MIG and TIG Filler Welding Wire and Rod to ensure their superior performance and reliability. These tests include checks for weld strength, corrosion resistance and overall durability to meet stringent industry standards. We also offer third-party inspection services to provide additional assurance. Our focus on prompt delivery. Assure that our customers receive high-quality products on time, meeting their specific project requirements without delays.
The AWS ER320LR MIG and TIG Filler Wire and Rod are designed specifically for welding base metals with similar compositions, like alloy 20 (UNS N08020), in corrosive environments that involve sulfuric acid, phosphoric acid, and other harsh chemicals. You’ll find it commonly used in heat exchangers, reactor vessels, piping systems, pumps, and valves within chemical and pharmaceutical facilities. It’s also a great choice for welding equipment in the food and beverage sector, where high corrosion resistance is a must.
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