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Murex 308LSi .035 Stainless MIG Wire 33lb Spool

$32.94/lb $608.85/33lb spool only $18.45/lbSave 44%

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OVERVIEW

Smoother Welds with Murex 308LSi

If you have ever struggled with stainless steel weld puddles that feel sluggish or beads that pile up too high, the Murex .035" ER308LSi MIG wire is the solution you need. The "Si" stands for High Silicon, and for a welder, that translates directly to "ease of use." The extra silicon helps the molten metal flow out to the edges of the weld much better than standard 308L wire. This means you don't have to fight the puddle to get it to lay flat. You get a smooth, professional-looking bead with nice tie-ins at the toes, which makes you look good and saves you time on grinding later.

This 33 lb spool is built for serious fabrication work on 304 and 304L stainless steel. Because it is a "Low Carbon" (L-grade) wire, you can weld with confidence knowing you aren't compromising the corrosion resistance of the metal. It is perfect for jobs where the weld is going to be seen, like custom kitchen equipment, handrails, or automotive exhaust parts. The wire feeds smoothly through your gun, thanks to Murex's quality winding, so you get a steady arc without the stuttering that cheaper wires often cause.

Why choose Murex 308LSi?

  • Better Wetting: The puddle flows out smoothly, reducing the "crowned" look of the weld.
  • Less Grinding: Flatter beads mean less time with a flap disc trying to blend the weld.
  • Versatile: Works great on the most common stainless steels (304/304L).
  • Reliable Feeding: 33 lb spool is precision wound to prevent tangles and jams.

Set your machine to DCEP (Reverse Polarity), hook up your Tri-Mix or Argon/CO2 gas, and experience the difference high silicon makes. Whether you are doing production runs or custom fabrication, this wire gives you the control and appearance required for high-quality stainless welding.

Additional Information
Brand:Murex
Diameter:0.035 in
AWS Spec:ER308LSi
Grade:308LSi
Packaging:33 lb Spool
Weld Process:MIG (GMAW)
Polarity:DCEP
Material Composition:Stainless Steel
Shielding Gas Requirement:Argon/CO2 Mix, Argon/Oxygen Mix, Tri-Mix
Spool Size:33 lb
Wire Type:Solid
Alloy:308LSi
Packaging Description:33lb spool

INCLUDED

  • 33 lb Spool of .035" ER308LSi Stainless Steel MIG Wire
  • Safe Use Guide
  • Q2 Lot Certificate (Online)

APPLICATIONS

  • General Fabrication of 304 and 304L Stainless Steel
  • Food and Beverage Processing Equipment
  • Architectural Stainless Steel (Handrails, Trim)
  • Chemical and Pharmaceutical Tanks
  • Automotive Exhaust Systems
  • Light Structural Stainless Applications

FAQ

The 'Si' stands for higher silicon content. This addition improves the fluidity of the weld puddle, allowing for better wetting action and a flatter bead profile compared to standard 308L.

For MIG welding with solid stainless wire, a Tri-Mix (Helium/Argon/CO2) is often preferred for short-circuit transfer. For spray transfer, Argon/Oxygen (98/2) or Argon/CO2 (98/2) mixtures are commonly used.

No, for welding mild steel to stainless steel, you should typically use an ER309L or ER309LSi wire. ER308LSi is designed for welding stainless to stainless (specifically 300 series).

No, this is a solid MIG wire (GMAW) and requires an external shielding gas bottle to protect the weld.

The 'L' stands for Low Carbon. This means the carbon content is restricted to a maximum of 0.03%, which helps prevent intergranular corrosion (carbide precipitation) in the weld zone.

This is a standard 33 lb spool, which typically has a 12-inch diameter and fits most industrial wire feeders.

Yes, it meets AWS A5.9 classifications for ER308Si and ER308LSi, as well as ASME SFA-5.9 standards.

It is not recommended. For 316 stainless, you should use 316L or 316LSi wire to match the Molybdenum content of the base metal for proper corrosion resistance.

CATALOGUE & SPEC SHEETS

Spec Sheet
Safety Data Sheet
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