S520818-I26 - Hobart FabCO 309LT 1/16" Flux-Cored Stainless Wire, 33lb Spool

High-Performance Dissimilar Metal Joining

The Hobart 309/309L 1/16" Flux-Cored Welding Wire is a premium consumable designed for the rigorous demands of industrial fabrication. Engineered specifically for joining 300-series stainless steels to carbon or low alloy steels, this wire is an essential inventory item for petrochemical plants, food and beverage facility maintenance, and general heavy fabrication. Its chemical composition ensures a high-quality deposit that resists cracking and corrosion, even in transition zones between dissimilar metals.

This wire features a low carbon content (indicated by the 'L' designation), which significantly reduces the risk of intergranular corrosion caused by carbide precipitation during the welding process. This makes it particularly suitable for applications where the weldment will be exposed to corrosive environments or high temperatures. The flux-cored design (FCAW-G) provides a protective slag covering that shapes the bead and protects the molten pool, resulting in a smooth, flat weld profile with minimal spatter.

Ideally suited for both single and multiple pass applications, the Hobart 309/309L operates on DCEP polarity and offers excellent arc stability. It is compatible with both 100% CO2 and Argon/CO2 shielding gas blends, providing flexibility depending on the specific shop setup and desired arc characteristics. The 1/16" diameter allows for higher deposition rates, making it efficient for filling larger joints and increasing throughput in production environments.