100996 - ER308LSi Stainless MIG Wire 0.035 10lb Spool

High-Silicon ER308LSi MIG Wire for Enhanced Wetting

Central Wire's ER308LSi is the professional's choice for joining 18-8 austenitic stainless steels. This 0.035" diameter solid wire is formulated with a higher silicon content (0.65-1.00%) compared to standard ER308L. This metallurgical adjustment significantly alters the surface tension of the molten weld pool, drastically improving wetting action. The result is a weld bead that washes in smoothly at the edges, reducing the risk of cold lap and creating a flatter profile that is both stronger and more visually appealing.

Metallurgical Benefits:

• Low Carbon (L): Maintains a carbon content of 0.03% maximum, preserving the corrosion resistance of the base metal by minimizing carbide precipitation during the welding thermal cycle.
• High Silicon (Si): Enhances fluidity and arc stability, allowing for higher travel speeds and better control over the weld puddle, especially in fillet welds.

Operational Characteristics:

Designed for use with DCEP (Direct Current Electrode Positive) polarity, this wire offers a crisp, stable arc with very low spatter levels when used with appropriate shielding gases (typically 98% Argon/2% Oxygen or Argon/CO2 mixes). The 10 lb spool size is convenient for medium-duty fabrication tasks, offering a balance between portability and run-time. It is widely used in the chemical, food processing, and pharmaceutical industries where sanitary, corrosion-resistant welds are mandatory.