StarBlaze MIG Wire ER316LSi

StarBlaze MIG 316LSi is a premium, extra-low carbon solid stainless steel MIG welding wire featuring an elevated silicon content. Classified under AWS A5.9 as ER316LSi, this wire is the industry standard for high-speed automated and manual welding of molybdenum-bearing austenitic stainless steels where superior puddle fluidity and bead aesthetics are required.

Core Product Features
Silicon-Enhanced Fluidity: The high silicon content (~0.65–1.00%) significantly increases weld pool fluidity. This results in superb wash-in at the weld toes, flat bead profiles, and minimal post-weld grinding.
Intergranular Corrosion Resistance: The extra-low carbon content (? 0.03%) prevents chromium carbide precipitation at the grain boundaries, preserving maximum corrosion resistance in the heat-affected zone.
Chloride and Acid Protection: The ~2.5% molybdenum alloy base provides elite resistance against pitting and crevice corrosion in marine environments, chemical processing, and chloride-heavy media.
Controlled Ferrite Balance: Formulated to maintain a precise ferrite number (FN) to provide high resistance to hot cracking while ensuring excellent structural toughness.

AWS Specification: AWS A5.9 / A5.9M (Classification: ER316LSi)
EN ISO Specification: EN ISO 14343-A (Classification: G 19 12 3 L Si)
UNS Number: S31688 (with modified Si parameters)
Werkstoff Number (Europe): 1.4430