S669810-055 - Hobart HF-N Submerged Arc Neutral Flux - 50lb Bag

Technical Overview of Hobart HF-N Neutral Flux

The Hobart HF-N Neutral Flux is a premium submerged arc welding consumable designed specifically for industrial hardfacing, build-up, and overlay applications. Formulated as a neutral flux, it does not significantly alter the chemical composition of the deposited weld metal, making it an essential choice when precise alloy control is required. It is engineered to work seamlessly with solid and tubular 400 series stainless steel wires, ensuring high-integrity deposits in demanding environments.

One of the defining characteristics of HF-N flux is its excellent recovery of critical alloying elements. It effectively transfers Chromium (Cr), Nickel (Ni), Molybdenum (Mo), Niobium (Nb), and Vanadium (V) from the wire to the weld pool without substantial loss or dilution. This feature is vital for maintaining the metallurgical properties required for wear resistance and corrosion protection in heavy industrial components.

Operational efficiency is enhanced through its superior slag removal properties. Even at high interpass temperatures and when using oscillated welding techniques, the slag detaches easily, reducing cleanup time and the risk of slag inclusions. This makes the HF-N flux particularly suitable for continuous, multi-pass operations often found in steel mills and heavy equipment refurbishment centers.

Packaged in a durable 50-pound bag, this flux is ready for immediate deployment in automated submerged arc systems. Its consistency and reliability make it a preferred choice for professionals tasked with roll rebuilding and critical surface restoration.