S689219-078 - Hobart Fabco 309LT1-1/4 Flux-Cored Stainless Wire 1/16" 27.5lb Spool

High-Performance Stainless Flux-Cored Wire for Dissimilar Joints

The Hobart Fabco 309LT1-1/4 is a premium gas-shielded flux-cored wire designed to meet the rigorous demands of industrial fabrication. Engineered with a nominal composition of 24% chromium and 13% nickel, this wire is specifically formulated for joining austenitic stainless steels to carbon or low alloy steels. Its low carbon content (designated by the 'L') is critical for applications where intergranular corrosion resistance is paramount, as it minimizes carbide precipitation during the welding process. This makes it an ideal choice for buffer layers and cladding operations where the chemical composition of the base metal must be carefully managed.

This wire carries the AWS classification E309LT1-1/4, indicating its versatility in shielding gas requirements. It performs exceptionally well with both 100% CO2 and a 75% Argon / 25% CO2 mixture, providing flexibility for shops with varying gas supplies. The '1' in the classification denotes its all-position capability, supported by a fast-freezing slag system that supports the weld puddle in vertical and overhead positions without sacrificing bead appearance. The flux-cored design ensures higher deposition rates than solid wires or stick electrodes, significantly improving productivity in heavy fabrication environments.

Technical specifications include a tensile strength typically exceeding 80,000 PSI and elongation properties that ensure ductility in the finished weld. The 1/16-inch diameter allows for high-amperage welding, making it suitable for thicker base materials often found in the petrochemical and power generation sectors. The 27.5 lb spool is designed for standard industrial wire feeders, ensuring compatibility with existing equipment setups. Whether used for single-pass cosmetic welds or multi-pass structural joints, the Fabco 309LT1-1/4 delivers consistent, X-ray quality results.