Home > Electrodes > AWS Class E320LR-16 Electrodes
Lecong Stainless Manufacturer and Suppliers in Da Nang, Vietnam, provides specialized stainless steel electrodes like AWS Class E320LR-16, created for welding Alloy 20 and similar high-alloy materials. These electrodes are known for their high resistance to sulfuric acid and strong oxidizing environments, making them perfect for critical applications in the chemical and pharmaceutical industries. The “LR” label indicates low residual elements, reducing the risk of hot cracking and ensuring weld deposit purity. With great arc stability and corrosion resistance, E320LR-16 electrodes from Lecong Stainless are trusted in Vietnam and beyond for high-performance welds in demanding service environments. Lecong Stainless is a leading manufacturer and supplier based in Da Nang, Vietnam, specializing in high-quality welding products. Renowned for our expertise in the industry, we offer a wide range of welding solutions, including the AWS Class E320LR-16 Electrodes. These electrodes are designed for excellent welding performance, providing superior arc stability and a smooth finish. Ideal for a variety of industrial applications, we ensure reliability, durability and exceptional quality in all our products, meeting the diverse needs of our clients. At Lecong Stainless, our commitment to excellence drives us to deliver the highest standards in every product we offer.
AWS Class E320LR-16 electrodes contain about 20% chromium, 35% nickel, 3–4% molybdenum, and stabilized columbium, with low residual elements (carbon, silicon, phosphorus, sulfur) carefully controlled. This mix enhances resistance to intergranular corrosion, hot cracking, and stress corrosion cracking. Mechanical properties include a tensile strength of around 75,000 psi, a yield strength near 55,000 psi, and an elongation of 30%. The weld deposit shows excellent toughness and ductility under corrosive service conditions. Stable arcs, minimal spatter, and a smooth bead finish ensure reliable welding performance for high-alloy stainless steels in harsh chemical environments.
| Classification | AWS A5.4, E320LR-16 |
| Form | Welding Electrode, Welding Rods |
| Type Of Current | AC-DCEP (Direct Current Electrode Positive) |
| Welding Position | F, V, OH, H |
| Size | 2.0 mm, 2.50 mm, 3.15 mm, 4.00 mm, 5.0 mm |
| AC/DC+ | AC or DC (+) |
| JIS Specification | BS 2926 19.9 A R |
| Other Specification | DIN 8556 E19 9 R 23 A |
| AWS E320LR-16 Coated Electrodes Application & uses |
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| C | Cr | Ni | Mo | Nb + Ta | Mn | Si | P | S | Cu |
| 0.03 | 19.0-21.0 | 32.0-36.0 | 2.0-3.0 | 8 X C, min to 0.40 max | 1.50-2.50 | 0.30 | 0.02 | 0.015 | 3.0-4.0 |
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These electrodes offer excellent corrosion resistance and are suitable for welding stainless steel structures. They come in various diameters, such as 2.5 mm, 3.2 mm, and 4.0 mm. The light coating facilitates smooth arc stability and minimal spatter.
Providing superior corrosion resistance, heavy-coated electrodes are ideal for high-stress applications. They are available in diameters of 3.2 mm, 4.0 mm, and 5.0 mm. The heavy coating enhances the weld’s integrity and improves its resistance to oxidation.
With excellent corrosion resistance, these electrodes are designed for shielded arc welding of stainless steel. They are typically available in 2.5 mm, 3.2 mm, and 4.0 mm. The shielded arc provides enhanced protection against contamination during welding.
We ensure full transparency of our AWS Class E320LR-16 Electrodes with high-quality assurance. All orders come with essential documents, including a commercial invoice, packing list, fumigation certificate, heat treatment chart and an NABL-approved lab test report. We provide a Material Test Certificate per EN 10204/3.1b, PMI Test Certificate, 100% radiography test report and Third-Party Inspection Certificate. Our comprehensive documentation is arranged to ensure maximum client satisfaction.
AWS Class E320LR-16 electrodes are commonly used in industries that need high resistance to strong acids, especially sulfuric acid. They are suitable for chemical processing equipment, pharmaceutical plants, pulp and paper mills, and food processing industries where contamination must be minimized. Applications include welding tanks, pipelines, pressure vessels, heat exchangers, and other components in aggressive oxidizing environments. The low residual element design improves performance by reducing hot cracking, making them ideal for critical welded structures. Lecong Stainless supplies E320LR-16 electrodes to customers in Vietnam and internationally, providing durable solutions for demanding, corrosive industrial applications.
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