S249415-050 - Hobart Fabcor 86R .052 Metal Core Wire 500lb Drum

Hobart Fabcor 86R: Superior Mill Scale Tolerance and Deposition

Hobart Fabcor 86R is a gas-shielded metal-cored wire conforming to AWS E70C-6M H4 specifications, designed specifically to address the challenges of welding on mill scale and slightly rusty steel. This .052" diameter wire is formulated with increased silicon and manganese deoxidizers, which aggressively scavenge impurities from the weld pool. This chemical action significantly reduces porosity and lack of fusion defects that can occur when welding over contaminants, making it a superior alternative to solid ER70S-6 wires in less-than-perfect surface conditions.

Process Efficiency and Arc Characteristics
The tubular design of Fabcor 86R allows for higher current densities at equivalent amperage settings compared to solid wires. This results in higher deposition rates and faster travel speeds, which can improve overall productivity in heavy fabrication environments. The arc is characterized by a spray transfer mode when used with high-argon shielding gas blends (75-95% Ar / Balance CO2), providing a smooth, stable arc with very low spatter levels. The fluid weld puddle wets out smoothly at the toes, reducing the risk of cold lap and creating a flat bead profile that requires minimal post-weld cleanup.

Applications and Versatility
This wire is suitable for both single and multiple pass applications in the flat and horizontal positions. It excels in industries requiring heavy structural welds, such as railcar fabrication, shipbuilding, and heavy equipment manufacturing. The "H4" designation indicates a low diffusible hydrogen content (less than 4ml per 100g of weld metal), reducing the risk of hydrogen-induced cracking in thick sections of mild and low-alloy steel.

Bulk Packaging for High Volume
The 500 lb Exacto Pak is an ideal solution for high-duty-cycle stations and robotic cells. The bulk drum utilizes a tangle-free payout system that ensures consistent wire feeding, which is crucial for maintaining arc stability and weld quality in automated processes. By reducing the frequency of spool changeovers, the Exacto Pak format maximizes arc-on time and operational efficiency.