Home > Electrodes > AWS Class E320LR-16 Electrodes
Harsh Metalloys is a well-respected supplier and manufacturer of AWS Class E320LR-16 Electrodes, located in Mumbai, India. These electrodes are crafted specifically for welding Alloy 320 and similar austenitic stainless steels, which are often used in highly corrosive settings. The “LR” in E320LR-16 indicates a Low Residual ferrite content and carbon, enhancing resistance to intergranular corrosion while ensuring the weld metal remains ductile. E320LR-16 electrodes are known for their stable arc characteristics and smooth weld bead appearance. Harsh Metalloys offers these electrodes in various diameters to cater to industries like chemical processing, pharmaceuticals, pulp and paper, and food processing.
AWS Class E320LR-16 Electrodes create weld deposits with low carbon and low ferrite content, which helps reduce the risk of carbide precipitation and intergranular attack. The typical chemical makeup includes chromium (19–21%), nickel (32–36%), molybdenum (2–3%), along with trace elements like niobium and columbium. These electrodes provide a tensile strength of about 620 MPa, a yield strength of roughly 430 MPa, and an elongation of at least 30%. The resulting welds showcase excellent ductility and corrosion resistance, especially in environments with sulfuric, nitric, and organic acids, making them ideal for critical applications in harsh chemical conditions.
| 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 |
|
| 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.
AWS Class E320LR-16 Electrodes are mainly designed for welding tasks that involve Alloy 320 stainless steel, which is often found in settings with harsh acids, chlorides, and high-temperature corrosion. These electrodes are perfect for use in chemical processing equipment, pharmaceutical production systems, tanks and vessels in the food industry, pulp and paper mills, and petrochemical facilities. Their ability to resist stress corrosion cracking and intergranular corrosion makes them a great choice for pressure vessels, reactors, and heat exchangers that deal with highly corrosive substances. The E320LR-16 electrode guarantees strong, flawless welds in applications that require both mechanical strength and exceptional corrosion resistance.
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