5Kg - ER308LSi 1.0mm Stainless Steel MIG Welding Wire – High-Silicon Composition for Smooth Welds

ER308LSi is a solid stainless steel MIG wire designed for the GMAW process, suitable for welding austenitic stainless steels such as 304 and 304L. The elevated silicon content improves puddle fluidity, arc stability, and bead contour, making it ideal for high-speed automated welding and precision manual applications. Supplied on a 5kg spool, this 1.0mm wire delivers consistent feed performance, low spatter, and excellent corrosion resistance.

Typical Chemical Composition (% by weight):

• Carbon (C): 0.03%
• Chromium (Cr): 19.5 22.0%
• Nickel (Ni): 9.0 11.0%
• Manganese (Mn): 1.0 2.5%
• Silicon (Si): 0.65 1.00%
• Phosphorus (P): 0.03%
• Sulfur (S): 0.03%

Mechanical Properties (Typical Weld Deposit):

• Tensile Strength: 580 MPa
• Yield Strength: 350 MPa
• Elongation: 35%
• Ferrite Content: FN 410 (varies with dilution and shielding gas)

Wire Specifications:

• AWS/ASME Classification: ER308LSi
• Diameter: 1.0mm 
• Spool Weight: 5kg
• Wire Type: Solid, non-coated
• Shielding Gas: Ar or Ar + 23% O / Ar + 12% CO

Applications:

• Welding of 304/304L stainless steel components
• Food-grade equipment and piping
• Pressure vessels and tanks
• Automotive exhaust systems
• Architectural and structural stainless steel assemblies

📋 Compliance & Standards:

• Conforms to AWS A5.9 / ASME SFA-5.9
• RoHS compliant
• Suitable for ISO 9001-certified production environments