S222106-022 - Hobart Fabshield 21B E71T-11 Self-Shielded Flux-Cored Wire .030 10lb Spool

Hobart Fabshield 21B E71T-11 Wire Technical Overview

The Hobart Fabshield 21B (SKU: S222106-022) is a general-purpose, self-shielded flux-cored wire designed for the fabrication and repair of light-gauge mild and galvanized steels. Classified under AWS A5.20 as E71T-11, this consumable is engineered to operate without the requirement of external shielding gas, making it a preferred choice for field applications where wind conditions may compromise gas coverage. The wire features a diameter of 0.030 inches (0.8 mm), making it particularly suitable for thin-gauge applications where controlling heat input is critical.

Metallurgically, the Fabshield 21B is formulated to handle single or multiple pass applications in all welding positions (flat, horizontal, vertical, and overhead). The flux composition provides a fast-freezing slag system that supports out-of-position welding while maintaining excellent bead contour. A key operational characteristic of this wire is its requirement for DC Straight Polarity (DCEN). Unlike solid wires that typically run on DCEP, the DCEN polarity of Fabshield 21B directs more heat into the electrode and less into the base metal, significantly reducing the risk of burn-through on sheet metal and thin structural components.

This 10 lb (4.5 kg) spool offers a substantial volume of wire for extended operations while remaining compatible with portable wire feeders and benchtop machines that accommodate 8-inch spools. The wire demonstrates exceptional tolerance for base plates with moderate rust or mill scale, and it is specifically noted for its superior performance on galvanized steels, where it minimizes porosity and spatter common to other wire types. The arc characteristics are smooth and stable, producing a flat bead profile with light slag that is easily removed post-weld.

Industrial applications for the S222106-022 include general fabrication, agricultural equipment repair, prefab construction, and maintenance operations. It meets the rigorous standards expected of Hobart filler metals, ensuring consistent feedability and mechanical properties. Storage recommendations include maintaining the product in a dry, low-humidity environment to preserve the integrity of the flux core and prevent moisture pickup which can lead to weld defects.