308LT1-035-11 - Blue Demon 308L Flux-Core Stainless MIG Wire .035 11lb

Technical Analysis: Blue Demon E308LT1-1 Stainless Wire

The Blue Demon 308LT1-035-11 is a premium gas-shielded flux-cored arc welding (FCAW-G) wire designed for the joining of austenitic stainless steels, specifically types 304 and 304L. Manufactured to meet AWS A5.22 specifications, this wire carries the classification E308LT1-1 and E308LT1-4. The 'L' designation indicates a low carbon content (maximum 0.04%), which is critical for preventing intergranular corrosion and carbide precipitation in the heat-affected zone (HAZ) during the welding process. This makes it an ideal choice for applications requiring high corrosion resistance and structural integrity.

Unlike solid MIG wires (ER308L), this flux-cored variant utilizes a rutile-based slag system that supports the molten pool, allowing for superior all-position performance. It is particularly effective in vertical-up and overhead positions where solid wire often struggles with fluidity control. The flux core also contributes to a spray-like transfer mode even when using 100% CO2 shielding gas, although a mixture of 75% Argon and 25% CO2 is recommended for the smoothest arc characteristics and minimal spatter. The wire is formulated to produce a flat to slightly convex bead profile with slag that is often self-releasing, reducing post-weld cleaning time significantly.

Metallurgically, the deposit composition is balanced to provide a ferrite number (FN) that ensures resistance to hot cracking while maintaining excellent ductility and toughness. The 11lb spool size is typically mounted on an 8-inch diameter spool, making it compatible with a wide range of industrial wire feeders and portable welding units. This wire operates on Direct Current Electrode Positive (DCEP) and requires a constant voltage power source. It is suitable for service temperatures from cryogenic levels up to approximately 350°C (660°F).