Hobart Fabco XL-550 1/16" Flux-Cored Wire 33lb Spool

Reliable All-Position Wire for Tough Jobs

When your project demands a weld that can withstand the elements and heavy loads, the Hobart Fabco XL-550 is the wire you want in your feeder. This 1/16" flux-cored wire comes in a 33lb spool and is built for welders who need to tackle structural steel, heavy machinery, and shipbuilding projects with confidence. Unlike standard wires that might struggle out of position, the XL-550 features a fast-freezing flux that makes vertical-up and overhead welding significantly easier. You get a flat, smooth bead profile with minimal effort, allowing you to focus on the puddle rather than fighting gravity.

Designed to run on 100% CO2, this wire cuts through mill scale and rust better than many mixed-gas wires, giving you deep penetration and solid fusion on every pass. The arc is stable and aggressive, helping you lay down metal quickly while maintaining control. One of the biggest benefits for the operator is the slag release; in many cases, the slag lifts right off as it cools, saving you from excessive chipping and grinding between passes. This is a huge time-saver when you are doing multi-pass welds on thick columns or beams.

Safety and quality are built into the chemistry of the Fabco XL-550. It offers low hydrogen levels to prevent cracking, which is essential when working on critical infrastructure or heavy equipment that operates in freezing temperatures. The wire is formulated to maintain high impact strength even when the thermometer drops, ensuring your repairs and fabrications hold up in the harshest winters. whether you are repairing an excavator bucket in the field or fabricating structural beams in the shop, the Hobart Fabco XL-550 delivers the professional results and ease of use that serious welders expect from the Hobart brand.