
The Hobart Fabshield 21B is a premier choice for general fabrication and structural welding applications where external shielding gas is impractical or unavailable. This .030-inch diameter wire conforms to AWS E71T-11 classifications, offering a robust solution for single and multi-pass welding on mild and coated steels. The product is supplied in a substantial 500lb reel, designed for high-volume automated systems or heavy-duty industrial stations requiring continuous feed with minimal downtime for spool changes.
Engineered for versatility, Fabshield 21B operates on DCEN (Direct Current Electrode Negative) polarity. It features a fast-freezing slag system that facilitates all-position welding, including difficult vertical-up and overhead joints. The wire's chemical composition is specifically formulated to handle light-to-moderate rust and mill scale, as well as galvanized surfaces, without compromising weld integrity. This makes it an excellent specification for manufacturing environments dealing with diverse steel conditions.
Technically, the wire provides a tensile strength consistent with the E71T series (approx. 70,000 psi), ensuring structural reliability. The self-shielding nature of the flux core eliminates the logistical burden of gas cylinders, making it highly effective for facility maintenance, agricultural equipment repair, and open-air fabrication yards. The 500lb bulk packaging ensures that large-scale operations can maintain peak efficiency and throughput.
| Additional Information |
|---|
| Packaging Description:1500lb reel, 500lb Reel |
| Diameter:0.030 |
| AWS Spec :E71T-11 |
| Weld Process:Gasless, Flux Core |
| Polarity:DC+ |
| Position:All Position |
| Wire Type:Self-Shielded Flux-Cored |
| Tensile Strength:70,000 PSI (Approx) |
| Alloy:Carbon Steel |
| Current Type:DCEN |
| ----- new values below ---- |
| Wire Type:Self-Shielded Flux-Cored |
| Shielding Gas:None Required |
| Tensile Strength:70,000 PSI (Approx) |
| Alloy:Carbon Steel |
| Current Type:DCEN |
| Brand:Hobart |
| Diameter:0.030 |
| AWS Spec:E71T-11 |
| Weld Process:Flux Core, Gasless |
| Packaging Description:500lb Reel |
| Polarity:DC- |
| Position:All Position |





