316LSi Stainless Steel MIG Wire

$30.00
$30.00
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ER316LSi Stainless Steel MIG Wire

316LSi offers the same characteristics as 316L, with a higher silicon content for better arc stability and a smoother bead appearance, plus a low carbon content for excellent resistance to carbide precipitation.

  • Made in Canada
  • CWB approved to W48-18 and AWS A5.9 (GMAW stainless steel)

Download Spec Sheet

Available spool and wire sizes

  • 4" spool, 2 lb: .023", .030", .035", .045"
  • 8" spool, 10 lb: .023", .030", .035", .045"
  • 12" spool, 33 lb: .023", .030", .035", .045", .062"

What is ER316LSi Stainless Steel MIG Wire used for?

ER316LSi stainless steel MIG wire is primarily used for welding similar molybdenum-bearing austenitic alloys (such as AISI 316 and 316L stainless steel) where high resistance to corrosion, pitting, and acid attack is required.

What the Code Means

  • 316: Formulated to match Type 316 stainless steel, containing molybdenum for enhanced resistance to chlorides and industrial chemicals.

  • L (Low Carbon): Max carbon content of 0.03%, which minimizes carbide precipitation during welding and prevents intergranular corrosion without needing post-weld heat treatment.

  • Si (High Silicon): Higher silicon content (0.65%–1.00%) improves arc stability, increases fluid puddle mobility, and results in smoother weld beads with flatter profiles and better toe wetting.

Key Applications & Industries

  • Chemical & Petrochemical Processing: Used in piping, tanks, pressure vessels, and valves exposed to corrosive acids and harsh industrial solvents.

  • Food, Beverage & Dairy: Preferred for equipment requiring smooth, sanitary weld surfaces to prevent bacterial buildup and withstand frequent CIP (clean-in-place) chemical washdowns.

  • Marine Infrastructure & Hardware: Ideal for salt-water and coastal environments, including boat fittings, handrails, and marine structural components exposed to chloride pitting.

  • Pharmaceutical & Biotechnology: Welds process lines and vessels where clean, defect-free joints are necessary to avoid fluid contamination.

  • Exhaust Systems & Architectural Fabrication: Popular in custom automotive stainless exhaust fabrication and high-end architectural metalwork due to its aesthetic bead appearance and minimal spatter.

Technical Shielding Gas Recommendations