S520812-I26 - Hobart FabCO 309L .045" Flux-Cored Stainless Wire, 33lb Spool

Hobart FabCO 309L Flux-Cored Stainless Steel Wire

The Hobart FabCO 309L (S520812-I26) is a premium gas-shielded flux-cored wire designed for high-performance welding in industrial environments. Engineered with a nominal composition of 24% chromium and 13% nickel, this wire is the industry standard for joining dissimilar metals, specifically 300-series stainless steels to carbon or low-alloy steels. Its low carbon content (denoted by the 'L') provides superior resistance to intergranular corrosion, making it a reliable choice for critical applications in petrochemical and food processing industries.

This 0.045-inch diameter wire is packaged in a 33-pound spool and is formulated for all-position welding. It offers significant advantages over solid MIG wires, including higher deposition rates and a broader penetration profile. The flux composition ensures a stable arc and produces a fast-freezing slag that is easily removed, often peeling off by itself. This feature significantly reduces post-weld cleaning time and labor costs.

The FabCO 309L is versatile in its shielding gas requirements, operating effectively with either 100% CO2 or a 75% Argon / 25% CO2 blend. Using mixed gas typically yields a smoother arc and reduced spatter, while CO2 provides deeper penetration. It is classified under AWS A5.22 as E309LT0-1 and E309LT0-4, ensuring compliance with rigorous quality standards. Whether used for buffer layers before cladding or for structural joints between differing steel grades, this wire delivers consistent, high-quality results.

Key Technical Specifications

• AWS Classification: E309LT0-1, E309LT0-4
• Diameter: 0.045" (1.2 mm)
• Current: DCEP (Direct Current Electrode Positive)
• Shielding Gas: 100% CO2 or 75% Ar / 25% CO2
• Tensile Strength: Approx. 85,000 PSI (depending on gas)