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EX316LSI-045M - Exocor ER316LSi .045 MIG Stainless Welding Wire

Packaging: 44lb spool
$32.00/lb $880.00/44lb spool only $20.00/lbSave 37%

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OVERVIEW

Superior Control and Bead Aesthetics

For welders who demand precision and aesthetics in their stainless steel projects, the Exocor ER316LSi .045" MIG Wire delivers an outstanding operating experience. Whether you are welding custom marine hardware, brewery tanks, or high-end architectural features, this wire provides the smooth, stable arc you need to lay down perfect beads. The .045" diameter is versatile, offering high deposition rates for thicker sections while maintaining enough control for positional work when using pulsed MIG settings.

The 'Si' in 316LSi stands for high silicon, and you will notice the difference the moment you strike an arc. The molten puddle is more fluid and responsive, wetting out to the edges effortlessly. This characteristic helps eliminate the 'crowned' or ropey appearance often associated with standard stainless wires, leaving you with a professional, flat profile that requires minimal cleanup. The wire feeds smoothly thanks to Exocor's attention to surface finish and spooling quality, ensuring that your arc stays focused exactly where you want it.

This filler metal is the go-to solution for welding 316 and 316L base metals but can also be used for 304 grades when higher corrosion resistance is desired. The low carbon composition protects your work from intergranular corrosion, ensuring the longevity of the weldment. Compatible with standard MIG equipment and shielding gas mixes, this wire is an essential addition to any professional welder's arsenal for high-quality stainless fabrication.

Why Welders Choose Exocor 316LSi

  • Smooth Feeding: Precision layer winding reduces friction and drag in the gun.
  • Beautiful Beads: High silicon wash-in creates gallery-quality welds.
  • Versatile Performance: Stable arc in spray transfer and pulsed modes.
Additional Information
Brand:Exocor
Diameter:0.045 in
Aws Spec:ER316LSi
Weld Process:MIG (GMAW)
Grade:316 HiSil
Polarity:DC
Material Composition:Stainless Steel
Wire Type:Solid
Shielding Gas Requirement:Argon/CO2 Mix, Argon/Oxygen Mix
Alloy Type:Austenitic 316LSi
Current Type:DCEP (Direct Current Electrode Positive)
Packaging Description:44lb spool
Packaging:25-33 lb Spool

INCLUDED

  • 1 x Spool of Exocor ER316LSi .045" Stainless Steel MIG Wire

APPLICATIONS

  • Food and beverage processing equipment manufacturing
  • Chemical and petrochemical storage tanks
  • Marine fittings and boat hardware
  • Pharmaceutical production vessels
  • Architectural stainless steel structures
  • Pulp and paper mill machinery
  • Textile industry equipment

FAQ

The 'Si' stands for higher silicon content. While both alloys offer similar corrosion resistance and mechanical strength, the 316LSi has better wetting action, meaning the weld puddle flows out smoother and ties into the edges better, resulting in a flatter bead profile.

For solid stainless MIG wire like this, a mixture of Argon and CO2 (typically 98% Argon / 2% CO2) or an Argon/Oxygen mix (98% Argon / 2% Oxygen) is recommended. Tri-mix gases (Helium/Argon/CO2) can also be used for short-circuit transfer.

Yes, you can use 316LSi to weld 304 stainless steel. It will provide a weld with higher corrosion resistance than the base metal. However, 308L is the standard filler for 304, so using 316L is often considered an upgrade or acceptable substitute.

This solid MIG wire requires Direct Current Electrode Positive (DCEP), also known as Reverse Polarity.

The 'L' stands for 'Low Carbon'. This indicates that the carbon content is restricted to a maximum of 0.03%, which prevents carbide precipitation and maintains corrosion resistance in the heat-affected zone.

Absolutely. 316LSi contains molybdenum, which provides excellent resistance to salt water and chloride environments, making it the standard choice for marine fabrication.

The typical tensile strength for ER316LSi weld deposits is approximately 85,000 PSI (590 MPa), though this can vary slightly based on welding parameters and gas used.

No, this is a solid wire, so it does not produce a slag covering like flux-cored wires. However, small islands of silica may form on the weld surface, which are easily brushed off.