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Hobart 308L Hi-Sil (AWS Class ER308LSi) is a solid stainless steel welding wire designed for the Gas Metal Arc Welding (GMAW) process. This product comes on a 30lb spool and features a 1/16" (1.6mm) diameter, making it suitable for heavy-duty fabrication tasks requiring high deposition rates and robust structural integrity. The wire is classified as "Hi-Sil" due to its elevated silicon content (typically 0.65% - 1.00%), which enhances the fluidity of the molten pool.
The primary advantage of the ER308LSi classification over standard ER308L is the improved "wash-in" characteristics. The increased fluidity allows the weld metal to flow more freely to the edges of the joint, creating a concave bead profile that blends smoothly with the base metal. This is particularly advantageous when welding fillets or when aesthetic appearance is a priority. Despite the higher silicon, the mechanical properties and corrosion resistance remain comparable to standard 308L, making it suitable for service conditions where 304/304L base metals are used.
This 1/16" wire is typically operated in the spray transfer mode using argon-rich shielding gas mixtures (e.g., 98% Argon / 2% Oxygen or 98% Argon / 2% CO2). The larger diameter supports higher amperage settings, allowing for faster travel speeds on thick sections of stainless steel plate and pipe. It is widely used in the petrochemical, pharmaceutical, and heavy equipment industries.
| Additional Information |
|---|
| Brand:Hobart |
| AWS Spec:ER308LSi |
| Grade:308 HiSil |
| Diameter:1.6mm (1/16") |
| Packaging:30 lb Spool |
| Weld Process:MIG (GMAW) |
| Polarity:DC |
| Material Composition:Stainless Steel |
| Wire Type:Solid |
| Shielding Gas Requirement:Argon/Oxygen Mix, Argon/CO2 Mix |
| Alloy:ER308LSi |
| Spool Size:30 lb |
| Packaging Description:30lb spool |
