
For professional welders tackling heavy steel projects, the Lincoln Electric UltraCore HD-C 1/16" Flux-Core Wire is the tool you need to get the job done fast and right. This wire is a gas-shielded flux-cored electrode (FCAW-G) that is built for speed. If you are welding in the flat or horizontal positions, the UltraCore HD-C allows you to crank up the wire feed speed and lay down heavy beads with deep penetration, perfect for thick plate and structural assemblies.
One of the standout features of this wire is its performance with 100% CO2 shielding gas. Many wires struggle with spatter and arc instability when using straight CO2, but the UltraCore HD-C is chemically designed to smooth out that harshness. You get the deep penetration benefits of CO2 without the excessive cleanup usually associated with it. The slag system is robust yet easy to remove, often peeling off in large sections to reveal a clean, professional-looking weld bead underneath.
This 33lb spool (ED033761CAN) fits standard industrial wire feeders and is ideal for shop environments where downtime for spool changes needs to be minimized. The 1/16" diameter is substantial, meant for high-amperage applications where filling joints quickly is the priority. It offers excellent resistance to cracking and provides the mechanical strength required for critical welds. Whether you are repairing heavy machinery or fabricating steel beams, this wire gives you the control and deposition you need.
Why Welders Choose UltraCore HD-C:
| Additional Information |
|---|
| Brand:Lincoln Electric |
| Diameter:1.6mm (1/16") |
| Packaging Description:33lb spool |
| Spool Size:33 lb Spool |
| Weld Process:Flux-Cored (FCAW) |
| Polarity:DCEP |
| Position:Flat/Horizontal |
| Material Composition:Carbon Steel |
| Wire Diameter:1/16" |
| Wire Type:Gas-Shielded Flux-Cored |
| Shielding Gas Requirement:100% CO2 |
| AWS Classification:E70T-1C, E70T-9C |
| Welding Position:Flat, Horizontal |
| Current Type:DCEP |
| AWS Spec:E71T-1 |





