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100996 - Central Wire ER308LSi Stainless MIG Wire 0.045 2lb Spool

Packaging: 1of1
$19.20/lb $24.00/1of1 only $12.00/lbSave 37%

In stock

OVERVIEW

Smooth Welding with 308LSi Stainless Wire

If you are welding 304 or 304L stainless steel and struggling with sluggish puddles or ropey beads, the Central Wire ER308LSi is the solution you need. This 0.045-inch MIG wire is engineered with extra silicon, which acts like a secret ingredient to make your weld puddle flow like butter. The 'Si' in the name stands for High Silicon, and for the welder under the hood, that means the metal wets out smoothly at the edges (the toes) of the weld. The result? A flatter, cleaner-looking bead that requires far less grinding to make it look professional. It’s perfect for those cosmetic welds on food trucks, kitchen equipment, or custom automotive exhausts.

This specific spool is a 2lb package, which is the standard size for spool guns. If you are doing mobile repair work or just have a small stainless project and don't want to lug around a heavy machine or buy a massive 33lb spool that will rust before you use it all, this is the perfect size. The 0.045-inch diameter allows you to lay down metal quickly on thicker materials (1/8 inch and up) without overheating the base metal, provided you have a machine with enough amperage to run it smoothly.

Why Choose High Silicon?

Standard stainless wire can sometimes feel 'stiff' or sluggish, leading to high-crowned beads that are a pain to finish. The high silicon formula in this CWI wire changes the surface tension of the pool, giving you better control and faster travel speeds. It also helps with arc stability, reducing that annoying spatter that sticks to your nozzle and workpiece. Whether you are a professional fabricator or a serious hobbyist, using 308LSi makes the job easier and the final product look better. Remember to use a Tri-mix gas or an Argon/CO2 blend (like 98/2) for the best results—straight Argon won't give you the bite you need, and straight CO2 will ruin the stainless properties.

Central Wire is known for quality winding, so you won't have to fight with tangles or feed issues. Just load the 4-inch spool into your gun, set your gas, check your polarity (DCEP), and you are ready to lay down some

Additional Information
Brand:Central Wire
AWS Spec:ER308LSi
Diameter:0.045 in
Grade:308 HiSil
Packaging:2 lb Spool
Polarity:DCEP
Weld Process:MIG (GMAW)
Material Composition:Stainless Steel
Wire Type:Solid
Shielding Gas Requirement:Argon/CO2 Mix, Argon/Oxygen Mix, Tri-Mix
AWS Classification:ER308LSi
Spool Size:2 lb, 4 in
Alloy:308LSi
Packaging Description:1of1

INCLUDED

  • 1 x 2lb Spool of ER308LSi Stainless Steel MIG Wire (0.045" Diameter)

APPLICATIONS

  • Food service and processing equipment fabrication
  • Chemical storage tanks and piping
  • Architectural stainless steel structures
  • Automotive exhaust systems and custom fabrication
  • General repair of 304 and 304L stainless steel components
  • Dairy and pharmaceutical equipment

FAQ

The 'Si' stands for High Silicon. This addition improves the wetting action of the weld puddle, resulting in a flatter bead profile and smoother tie-ins at the toes of the weld.

While it is physically possible, it is not recommended. Using stainless wire on mild steel is expensive and can lead to cracking due to metallurgical dilution. Use ER70S-6 for mild steel.

For MIG welding stainless steel, a mixture of 98% Argon and 2% Oxygen or a Helium/Argon/CO2 tri-mix is recommended. Do not use 100% CO2.

This 2lb spool typically has a 4-inch diameter. It fits spool guns and smaller MIG welders. If your welder only takes 8-inch or 12-inch spools, you may need an adapter or a different spool size.

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

No, for 316 or 316L stainless steel, you should use ER316L or ER316LSi wire to match the molybdenum content of the base metal.

The wire diameter is 0.045 inches (approximately 1.2mm).

The wire itself is stainless steel and highly resistant to rust. However, if stored in a high-humidity environment for long periods without packaging, it can develop surface contaminants.