S224525-029 - Hobart Fabshield 4 E70T-4 Self-Shielded Wire 5/64" 33lb

Hobart Fabshield 4: High-Efficiency Self-Shielded Flux-Cored Wire

The Hobart Fabshield 4 is a premium self-shielded tubular wire engineered for heavy-duty mild steel applications. Identified by the internal SKU S224525-029, this 33-pound spool features a 5/64-inch diameter wire designed to deliver exceptionally high deposition rates, making it a preferred choice for structural fabrication where speed and weld volume are critical. As an AWS E70T-4 classified consumable, Fabshield 4 operates without the need for external shielding gas, utilizing its internal flux composition to protect the weld pool. This characteristic makes it uniquely suited for field operations where wind or drafty conditions would compromise the integrity of gas-shielded processes.

Technically, Fabshield 4 is formulated to run on DCEN (Direct Current Electrode Negative) polarity. The flux chemistry provides excellent desulphurizing action, which significantly aids in resisting cracking, even when welding on steels with higher sulfur content or minor surface contaminants. The wire produces a fluid puddle that wets out smoothly, resulting in a flat bead profile with complete slag coverage that is generally easy to remove. While primarily designed for flat and horizontal positions due to the fluidity of the weld pool, its high deposition efficiency allows operators to fill large grooves and fillets rapidly, reducing overall cycle time in heavy manufacturing environments.

This wire is specifically optimized for single or multiple pass applications on mild steel. It is widely utilized in industries requiring robust structural integrity, such as barge building, heavy machinery construction, and general heavy fabrication. The 5/64" diameter allows for higher amperage settings, translating to deeper penetration and faster travel speeds compared to smaller diameter wires. By eliminating the logistical burden of shielding gas cylinders, the Fabshield 4 streamlines workflow in large-scale construction projects and remote repair sites.