Lincoln Electric UltraCore® HD-C is a 0.045-inch gas-shielded flux-cored wire for FCAW-G, classified to AWS A5.36 E71T1-C1A2-CS1-H8 and AWS A5.20 E71T-9C-H8. It supports deposition rates up to 10 lb/hr out of position and a wide operating range that allows welding in all positions from a single machine setting. Fast-freezing slag helps produce a flat bead, while the wire can weld over light rust, mill scale, and primer with little or no pre-weld cleanup.