
When your project involves welding 2-1/4 Chrome 1 Moly steel, you need a consumable that doesn't just meet the spec but also makes the job easier. The Hobart Fabco 911B3 .045" flux-cored wire is built exactly for that purpose. It is the go-to choice for welders working on high-pressure steam piping, heat exchangers, and heavy-wall pressure vessels found in power plants and refineries. This wire takes the headache out of welding exotic alloys by providing a smooth, stable arc and a puddle that goes exactly where you want it, even when you are welding out of position.
We know that welding vertical-up on heavy pipe can be a challenge with the wrong filler metal. The Fabco 911B3 features a quick-freezing slag that acts like a shelf, holding the molten metal in place and allowing you to stack beads with precision. This means less fighting with the puddle and more time laying down perfect welds. The slag releases easily—often curling up on its own—so you aren't wasting valuable time chipping and hammering between passes. Plus, the ability to use either straight CO2 or an Argon mix gives you the freedom to dial in the arc to your personal preference or shop setup.
This 33lb spool is designed for industrial wire feeders and provides enough material for substantial runs without constant changeovers. It is specifically formulated to match materials like P22 pipe, ensuring that the weld seam can handle the same extreme heat and stress as the pipe itself. Whether you are repairing heavy earthmoving equipment or fabricating critical components for a boiler system, the Hobart Fabco 911B3 delivers the professional performance and durability required for code-quality work. Trust Hobart's expertise in flux-cored technology to help you deliver defect-free welds on your toughest alloy jobs.
| Additional Information |
|---|
| Brand:Hobart |
| Diameter:0.045 in |
| Packaging Description:33lb spool |
| Spool Size:33 lb Spool |
| Weld Process:Flux-Cored (FCAW) |
| Position:All Position |
| Polarity:DCEP |
| AWS Classification:E91T1-B3C, E91T1-B3M |
| Material Composition:Low Alloy Steel, 2.25% Chromium, 1% Molybdenum |
| Shielding Gas Requirement:100% CO2, 75% Argon / 25% CO2 |
| Wire Type:Gas-Shielded Flux-Cored |
| Tensile Strength:90,000 - 100,000 psi (Typical) |
| Alloy Type:Chrome-Moly |





