The Lincoln Subarc Flux 780 is an active flux designed specifically for submerged arc welding (SAW) applications, ideal for welders requiring reliable flux performance in limited pass welding.

This 700 Series flux is industry standard for submerged arc welding, offering fast freezing slag that facilitates easy slag removal and minimizes slag spilling, particularly on circumferential welds. When used in combination with L-61 wire, it is recommended for welding operations involving up to three passes.

The flux promotes excellent bead shape and slag removal, contributing to high-quality welds. Additionally, it provides good resistance to moisture contamination, which helps reduce porosity in the welds, ensuring structural integrity and weld consistency.

• Active flux for limited pass submerged arc welding
• Fast freezing slag for easy removal and reduced slag spill
• Recommended for up to three pass welding with L-61 wire
• Excellent bead shape and slag removal
• Good moisture resistance to minimize porosity