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S526806-I26 - Hobart ER308LSi .030 Stainless MIG Wire 30lb Spool

Packaging: 30lb spool
$24.10/lb $451.80/30lb spool only $15.06/lbSave 38%

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OVERVIEW

Experience Smoother Stainless Welding with Hobart 308L Hi-Sil

If you have ever struggled with sluggish stainless steel puddles that just won't flow out to the edges, Hobart 308L Hi-Sil is the solution you need. This .030" MIG wire is formulated with extra silicon, which might sound like just a technical detail, but under the hood, it makes a massive difference in how the wire runs. The "Hi-Sil" chemistry makes the molten metal more fluid, giving you a "wetter" puddle that washes into the sides of the joint effortlessly. This means you get excellent tie-ins with less manipulation of the gun, allowing for potentially faster travel speeds and a much smoother rhythm.

For fabricators working in the food and beverage, dairy, or pharmaceutical industries, bead appearance is everything. Rough, ropy welds trap bacteria and require extensive grinding and polishing to meet sanitary standards. The Hobart 308L Hi-Sil lays down a flat, smooth bead that looks professional right out of the gun, significantly reducing your post-weld cleanup time. It is the perfect match for welding standard 304 and 304L stainless steels, providing a high-quality, corrosion-resistant finish that stands up to harsh chemical environments.

This 30lb spool is designed for production environments, fitting standard industrial wire feeders so you can keep welding longer without frequent changeovers. The .030" diameter is versatile enough for thin sheet metal applications where burn-through is a concern, yet capable of handling thicker sections with the right settings. Whether you are building custom kitchen equipment, repairing tanks, or doing general fabrication, this wire offers the consistency and feedability Hobart is known for, ensuring your arc stays stable and your spatter stays low.

Additional Information
AWS Spec:ER308LSi
Brand:Hobart
Diameter:0.030 in
Grade:308L HiSil
Packaging:30 lb Spool
Weld Process:MIG (GMAW)
Polarity:DCEP
Material Composition:Stainless Steel
Wire Type:Solid
Shielding Gas Requirement:Argon/CO2, Argon/Oxygen, Tri-Mix
Alloy Type:Austenitic Stainless Steel
Packaging Description:30lb spool

INCLUDED

  • 1 x 30lb Spool of Hobart 308L Hi-Sil (ER308LSi) .030" MIG Welding Wire

APPLICATIONS

  • Food and Beverage processing equipment fabrication
  • Petrochemical plant piping and storage tanks
  • Pulp and Paper industry machinery
  • General fabrication of 304 and 308 stainless steels
  • Pharmaceutical and sanitary piping systems
  • Architectural stainless steel structures
  • Light gauge stainless sheet metal work

FAQ

'Hi Sil' stands for High Silicon. This indicates that the wire has a higher silicon content than standard 308L. The silicon acts as a deoxidizer and improves the fluidity of the weld puddle, resulting in better wetting at the toes of the weld and a flatter bead profile.

For MIG welding with ER308LSi, a mixture of 98% Argon and 2% Oxygen is commonly used for spray transfer. For short-circuit transfer or general purpose, Argon/CO2 mixes (such as 90/10 or 95/5) are effective. Tri-mix gases (Helium/Argon/CO2) are also excellent for short-circuit welding on thinner gauges.

Yes, ER308LSi is the standard filler metal choice for welding Grade 304 and 304L stainless steels. It provides matching corrosion resistance and mechanical properties.

No, this is a solid MIG wire. It requires an external shielding gas supply to protect the weld pool from atmospheric contamination.

The 'L' stands for Low Carbon. This wire has a maximum carbon content of 0.03%, which prevents the formation of chromium carbides during welding. This protects the weld area from intergranular corrosion (sensitization), which is critical for equipment in corrosive environments.

This wire is designed to run on DCEP (Direct Current Electrode Positive), also known as Reverse Polarity.

This product comes on a 30lb spool, which is a standard industrial size typically requiring a wire feeder capable of holding 12-inch diameter spools.

Generally, the increased silicon content in the 'Si' grades does not negatively impact the corrosion resistance for most standard applications compared to standard 308L, while offering significant weldability benefits.

CATALOGUE & SPEC SHEETS

Spec Sheet
Safety Data Sheet
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