
When your project involves welding heavy equipment, crane booms, or critical structural components made from quenched and tempered steels, the Hobart Fabco 125K4 is the wire you can trust. This 1/16-inch flux-cored wire is built to handle the stress, delivering high-strength welds that resist cracking even under extreme conditions. If you are working with T-1 steel or similar high-yield materials, this wire provides the mechanical properties necessary to match the base metal's strength.
The Fabco 125K4 utilizes a basic slag system, which might run differently than the standard all-position wires you are used to, but the payoff is worth it. It produces welds with incredibly low hydrogen content and superior toughness, ensuring your welds hold up in freezing temperatures and high-stress environments. It runs on straight CO2 gas, keeping your shielding gas costs manageable while providing the deep penetration needed for thick sections.
Packaged in a massive 600 lb Exacto Pak, this product is ideal for shops that burn a lot of wire and want to stop wasting time on frequent spool changes. The bulk drum feeds smoothly, preventing tangles and stoppages so you can keep the arc lit and the job moving. Whether you are in shipbuilding, heavy earthmoving equipment repair, or structural fabrication, the Fabco 125K4 delivers the professional-grade reliability required for safety-critical welds.
| Additional Information |
|---|
| Brand:Hobart |
| Diameter:1.6mm (1/16") |
| Packaging Description:600lb exacto pak |
| Weld Process:Flux-Cored (FCAW) |
| Polarity:DCEP |
| Position:Flat/Horizontal |
| AWS Classification:E121T5-K4C H4 |
| Shielding Gas Requirement:100% CO2 |
| Tensile Strength:125,000 psi (Typical) |
| Wire Type:Gas-Shielded Flux-Cored |
| Alloy Type:Low Alloy Steel |
| Slag System:Basic |





