S279515-029 - Hobart Fabcor Edge Ni1 Metal-Cored Wire .052 33lb Spool

Technical Specification: Hobart Fabcor Edge Ni1

The Hobart Fabcor Edge Ni1 is a low-alloy, metal-cored electrode classified under AWS A5.28 as E80C-Ni1. It is designed for the gas metal arc welding (GMAW) of high-strength low-alloy (HSLA) steels, specifically those requiring good impact toughness at low temperatures. The .052" diameter offers a significant step up in deposition potential compared to smaller diameter wires, allowing for higher amperage parameters and faster joint completion in heavy plate applications.

Metallurgical Composition and Performance
This wire is formulated to deposit weld metal with approximately 1% Nickel, which is the primary driver for its excellent notch toughness. It is intended for welding steels such as ASTM A572, A514, and similar grades often found in heavy equipment and structural components. The metal-cored construction consists of a steel sheath filled with metal powders. This design carries higher current densities than solid wire, resulting in a broader, bowl-shaped penetration profile and higher deposition rates. The "Edge" technology improves the wetting action of the weld puddle, helping to wash the weld metal smoothly into the sidewalls, thereby minimizing stress concentrations and fusion defects.

Shielding Gas and Operating Parameters
The Fabcor Edge Ni1 is versatile regarding shielding gas. It is optimized for use with high-argon mixtures. A 98% Argon / 2% Oxygen mixture will provide a spray transfer mode with very low spatter and high fluidity, ideal for flat and horizontal fillets. Alternatively, a 75% Argon / 25% CO2 mixture can be used to provide a slightly more digging arc and better penetration profile, often preferred for general fabrication. The wire runs on DCEP (Direct Current Electrode Positive) polarity. The .052" size typically operates in a range of 250 to 450 amps, depending on wire feed speed and voltage settings.

Applications and Advantages
Primary applications include the fabrication of earthmoving equipment, railcars, and structural steel components exposed to cold climates. The wire is also capable of welding weathering steels (like Corten) in single or multi-pass applications where strict color matching isn't the primary concern but mechanical integrity is paramount. The slag system is designed to be minimal, often appearing as small islands that are easily removed, facilitating multi-pass welding without extensive inter-pass cleaning. This efficiency makes the Fabcor Edge Ni1 a top-tier choice for high-volume production environments seeking to maximize arc-on time.