10316L023 - ER316LSi .023 Stainless MIG Wire - 10lb Spool

High-Performance ER316LSi Stainless Steel MIG Wire

The ER316LSi .023" Stainless Steel MIG Wire is a premium welding consumable designed for the fabrication of critical stainless steel components. This wire complies with AWS A5.9 specifications and is formulated with a nominal composition of 19% chromium, 12% nickel, and 2.5% molybdenum. The "L" designation indicates a low carbon content (maximum 0.03%), which is essential for preventing intergranular corrosion and carbide precipitation during the welding process. This makes it particularly suitable for applications where the welded component will not undergo post-weld heat treatment.

Enhanced Metallurgy for Superior Wetting

The "Si" in ER316LSi denotes a higher silicon content (0.65% - 1.00%) compared to standard ER316L. This increased silicon level serves a dual purpose in industrial applications. Firstly, it acts as a deoxidizer, helping to remove impurities from the weld pool. Secondly, and most importantly for the operator, it significantly improves the fluidity and "wetting" action of the molten metal. This results in a smoother bead profile, better tie-in at the toes of the weld, and a reduction in the need for post-weld grinding or finishing. The presence of molybdenum provides enhanced resistance to pitting and crevice corrosion, particularly in chloride-bearing environments such as marine atmospheres or chemical processing plants.

Optimized for Thin Gauge Applications

With a diameter of 0.023 inches (0.6 mm), this wire is specifically engineered for welding thin gauge materials. The small diameter allows for operation at lower amperage ranges, providing precise control over heat input and minimizing distortion or burn-through on delicate sheet metal. Packaged on a standard 10 lb spool, it is compatible with a wide range of industrial wire feeders and portable MIG welding units.

Typical Industrial Applications

• Chemical and Petrochemical Processing: Tanks, piping, and heat exchangers requiring resistance to acidic environments.


• Food and Beverage Industry: Fabrication of sanitary equipment and storage vessels.


• Marine Fabrication: Fittings and structural components exposed to salt spray.


• Pharmaceutical Manufacturing: High-purity piping systems and reactors.