S527408-I26 - Hobart ER316LSi .035 Stainless MIG Wire 30lb Spool

Technical Overview of Hobart 316LSi Stainless Wire

The Hobart 316L Hi Sil (I) is a premium austenitic stainless steel solid wire classified as ER316LSi. This filler metal is specifically engineered with a higher silicon content than standard ER316L, typically ranging between 0.65% and 1.00%. The elevated silicon level serves as a deoxidizer and significantly enhances the surface tension characteristics of the molten weld pool. This results in superior wetting action, allowing the weld metal to flow more freely at the toes of the weld, thereby creating a flatter, smoother bead profile that is highly desirable in cosmetic and sanitary applications.

Metallurgically, the wire maintains the essential molybdenum content characteristic of the 316 alloy group, providing robust resistance to pitting and crevice corrosion, particularly in chloride-containing environments. The "L" designation indicates a low carbon content (maximum 0.03%), which is critical for preventing sensitization and intergranular corrosion in the heat-affected zone (HAZ) during welding. This makes the wire suitable for welding Type 316 and 316L base metals, as well as 304 and 304L grades when molybdenum is required for service conditions.

This 0.035-inch (0.9mm) diameter wire is spooled on a 30lb industrial spool, designed for high-volume fabrication environments. It operates effectively with shielding gas blends such as Argon/Oxygen (98/2) or Argon/CO2, providing stable arc transfer in the spray transfer mode. It is widely utilized in industries requiring strict adherence to corrosion resistance standards, including chemical processing and pharmaceutical manufacturing.