Skip to Main Content
Canadian
Canadian owned and operated

62181200 - Bonarc ER316LSi .045 Stainless MIG Wire 15kg Spool

Packaging: 15kg spool
$51.16/kg $479.70/15kg spool only $31.98/kgSave 37%

Usually ships within 3-5 business days

OVERVIEW

Bonarc 316LSi .045" Stainless MIG Wire - 15kg Spool

Upgrade your stainless steel welding projects with the Bonarc 316LSi MIG Wire. This .045-inch diameter wire comes in a substantial 15kg (approx. 33lb) spool, making it ideal for industrial fabrication shops and heavy-duty production environments. The "Si" in the name denotes a higher silicon content than standard 316L wire. This specific formulation is a game-changer for welders looking for better arc stability and fluid puddle control. The silicon acts as a deoxidizer and improves the surface tension of the weld pool, allowing the metal to wash out smoothly to the edges.

If you are working in industries such as pharmaceutical manufacturing, food and beverage processing, or architectural fabrication, the appearance of the weld is often as important as its strength. The Bonarc 316LSi helps you achieve that professional, clean look with less effort. The wire produces a bright, clean weld deposit that requires minimal post-weld cleaning. Because it is a 316 grade, it offers excellent resistance to heat and corrosion, surpassing the capabilities of 304 stainless steel, especially in salt-water or chloride-rich environments.

This solid wire is designed for the Gas Metal Arc Welding (GMAW) process and requires shielding gas. Common gas mixtures include 98% Argon / 2% Oxygen or Argon / 2-5% CO2, which help stabilize the arc and ensure deep penetration. The 15kg spool fits most industrial wire feeders and is layer-wound to prevent feeding issues that can cause downtime. Trust Bonarc for consistent chemistry and diameter control, ensuring that every inch of wire performs exactly as expected.

Recommended Applications

  • Marine Fabrication: Boat fittings, railings, and tanks exposed to sea water.
  • Chemical Processing: Tanks, valves, and piping systems handling corrosive substances.
  • Food Industry: Stainless steel countertops, vats, and sanitary piping.
Additional Information
Brand:Bonarc
Diameter:0.045 in
Aws Spec:ER316LSi
Grade:316 HiSil
Packaging:15 kg Spool
Weld Process:MIG (GMAW)
Polarity:DC
Material Composition:Stainless Steel 316LSi
Wire Diameter:0.045"
Wire Type:Solid
Shielding Gas Requirement:Argon/CO2 Mix, Argon/Oxygen Mix
Spool Size:15 kg
AWS Classification:ER316LSi
Welding Position:All Position
Packaging Description:15kg spool

INCLUDED

  • 1 x 15kg Spool of Bonarc ER316LSi .045" Stainless Steel MIG Wire

APPLICATIONS

  • Chemical and petrochemical processing equipment
  • Food and beverage manufacturing machinery
  • Marine fittings and structures
  • Pharmaceutical equipment
  • Pulp and paper industry components
  • Textile industry equipment
  • Architectural stainless steel structures

FAQ

For MIG welding with ER316LSi, a mixture of Argon with 1-2% Oxygen or Argon with 2-5% CO2 is typically recommended to ensure arc stability and good bead wetting.

The 'Si' stands for higher silicon content. This improves the wetting action of the weld puddle, allowing it to flow out better and create a flatter, smoother bead compared to standard 316L.

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

Yes, you can use 316LSi to weld 304 stainless steel. It is considered 'overmatching' in terms of corrosion resistance, which is generally acceptable, though 308L is the standard match for 304.

This product comes on a 15kg spool, which is approximately 33 lbs.

Yes, the 316 grade contains Molybdenum which provides excellent resistance to pitting corrosion, making it ideal for marine applications.

This wire has a diameter of 0.045 inches (approx 1.2mm).

Yes, when welding with stainless steel wire, you should use a Teflon or plastic liner in your MIG gun to prevent contamination from steel liners and ensure smooth feeding.