ED035232 - Lincoln ER320LR 3/32" Stainless Steel TIG Rod - 10lb Tube

Advanced Metallurgy for Critical Stainless Applications

The Lincoln Electric ER320LR TIG (GTAW) Rod is a premium-grade consumable engineered specifically for the welding of fully austenitic stainless steels. The "LR" designation stands for "Low Residuals," indicating a strictly controlled chemical composition that minimizes trace elements such as carbon, silicon, phosphorus, and sulfur. In standard austenitic welding, these residuals can often lead to hot cracking and micro-fissuring, compromising the structural integrity of the weldment. By utilizing the ER320LR alloy, fabricators can ensure a metallurgically sound deposit that maintains high ductility and toughness even under constraint.

This rod is particularly effective in industries requiring exceptional corrosion resistance. It is designed to withstand highly acidic environments, including those involving sulfuric and phosphoric acids, making it an indispensable choice for the fabrication of chemical processing equipment, storage tanks, and process piping. Beyond its chemical resistance, the ER320LR alloy exhibits excellent stability at elevated temperatures, resisting scaling and oxidation that can degrade lesser materials over time. This makes it suitable for heat exchangers and elevated temperature piping systems where long-term reliability is paramount.

Lincoln Electric enhances the usability and quality assurance of this product through several key features. Each rod is marked with ink-jet printing along its entire length, providing instant visual identification of the alloy type. This feature is critical in preventing material mix-ups in multi-alloy workshops, ensuring that the correct filler metal is always used for the specific base material. Furthermore, the product is supplied with a Q2 Lot® certificate, offering full traceability and documentation of the actual wire composition. This level of quality control supports compliance with stringent industry standards and gives engineers confidence in the material's performance characteristics.

Packaged in a durable 10 lb tube, these 36-inch cut lengths are protected from environmental contaminants during storage and transport. The 3/32-inch (2.4 mm) diameter provides a versatile option for various joint configurations and material thicknesses, allowing for precise control of the weld puddle in GTAW applications. Whether used for root passes in pipe welding or for filling and capping in plate fabrication, the Lincoln ER320LR delivers consistent, high-quality results for the most demanding stainless steel projects.