1651099820 - ESAB OK Autrod 309LSi Stainless MIG Wire .035 15kg Spool

Name: ESAB OK Autrod 309LSi Stainless MIG Wire .035 15kg Spool
Brand: Esab
SKU: 1651099820
Price: 569.25 CAD
Availability: InStock

Packaging: 15kg spool

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SKU: 1651099820 Categories: All Stainless Mig, Tig & Electrodes, Welding Wires and Electrodes

OVERVIEW

Smooth Feeding 309LSi for Perfect Stainless Welds

Take your stainless welding projects to the next level with the ESAB OK Autrod 309LSi MIG Wire. This .035-inch diameter wire comes on a substantial 15kg (33lb) spool, making it perfect for busy fabrication shops and serious welders who need reliable, long-lasting consumables. If you have ever struggled with joining stainless steel to mild steel, this is the solution you have been looking for. The 309LSi classification is specifically engineered to handle the metallurgical challenges of dissimilar metal welding, preventing cracking and ensuring a strong, ductile bond every time.

What sets the 'Si' version apart is the high silicon content. For the welder under the hood, this translates to a weld puddle that flows like butter. The increased fluidity allows the bead to wet out smoothly at the edges, reducing the need for grinding and post-weld finishing. It produces a bright, clean weld appearance that professional welders appreciate. The low carbon content is equally important, as it protects your work from corrosion over time, ensuring that your projects stand up to the elements and harsh environments.

ESAB is renowned for their quality control, and the OK Autrod series is no exception. The wire is precision-wound to prevent tangles and snags in your liner, ensuring a steady, interruption-free feed from the first inch to the last. Whether you are building custom automotive exhaust systems, repairing heavy equipment, or fabricating architectural structures, this wire gives you the versatility to tackle complex joints with confidence. Compatible with standard MIG setups using Argon/CO2 or Argon/Oxygen shielding gas mixes.

Why Choose ESAB 309LSi?

Versatility: The go-to wire for welding stainless to mild steel.
Appearance: High silicon creates smooth, flat beads that look great.
Performance: Excellent feedability reduces bird-nesting and downtime.
Durability: Low carbon chemistry fights corrosion and cracking.

Additional Information
Brand:ESAB
Aws Spec:ER309LSi
Diameter:0.035 in
Grade:309 HiSil
Packaging:15 kg Spool
Packaging Description:15kg-spool
Weld Process:MIG (GMAW)
Polarity:DC
Material Composition:Stainless Steel (309LSi)
Wire Diameter:0.035" (0.9mm)
Shielding Gas Requirement:Argon/CO2 Mix, Argon/Oxygen Mix
Spool Size:15 kg (33 lb)
AWS Classification:ER309LSi
Applications:Dissimilar Metal Joining, Buffer Layers, Cladding
Alloy Type:Austenitic Stainless Steel

INCLUDED

1 x 15kg Spool of ESAB OK Autrod 309LSi MIG Wire (.035")

APPLICATIONS

Joining stainless steel (AISI 304, 316) to mild or carbon steels
Welding buffer layers on carbon steel before cladding
Overlay welding on unalloyed structural steels
Automotive exhaust system fabrication
General fabrication involving dissimilar metal joints
Repair and maintenance of industrial equipment

FAQ

ER309LSi is primarily used for welding dissimilar metals, such as joining stainless steel to mild (carbon) steel. It is also used for applying buffer layers on carbon steel prior to cladding.

The 'Si' indicates a higher silicon content. This improves the 'wetting' action of the weld puddle, allowing it to flow more smoothly and creating a flatter bead profile with better tie-in at the toes.

For MIG welding with 309LSi, a mixture of Argon with 2-5% CO2 or Argon with 1-2% Oxygen is typically recommended to ensure arc stability and proper fusion.

While you can, it is generally recommended to use ER308L for welding 304 to 304. ER309LSi is over-alloyed for that purpose and is better reserved for dissimilar joints or buffer layers.

This is a 15kg spool, which is approximately 33 lbs. It is a standard size for industrial wire feeders.

MIG welding generally requires shielding gas, which can be blown away by wind. Therefore, this solid wire is best used indoors or in a sheltered environment. For outdoor use, flux-cored wire might be a better option.

This solid MIG wire is designed to be used with DCEP (Direct Current Electrode Positive) polarity.

Yes, the 'L' stands for Low Carbon, which helps prevent intergranular corrosion (rusting from the inside out) in the weld zone, maintaining the stainless properties.