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Less is More: Ok AristoRod 38 ZN Solid Wire Reduces Spatter, Porosity For More Productivity When Welding Galvanized Steels

November 11, 2019

Annapolis Junction, Md.ESAB Welding & Cutting Products has launched OK AristoRod® 38 Zn, a solid wire with a specially alloyed formula that minimizes porosity and spatter on galvanized steels at FABTECH 2019, November 11-14, at McCormick Place in Chicago. As a result, it significantly reduces or eliminates rejects and rework, delivering optimized results when welding the galvanized steel components used in transportation, white goods, agricultural tanks and troughs, HVAC systems and construction (roofs, facades, gates, fences, stairs, catwalks).

Manufacturers are using thicker Zn coatings so that they can produce longer lasting components and offer longer anti-corrosion product warranties. However, a thicker coating exacerbates the challenges inherent with welding galvanized steel. Zinc melts at temperatures lower than steel (786 ºF vs. 2,498 ºF). As a result, the heat of the welding arc releases zinc vapor around the weld pool, which affects arc stability and contributes to excess spatter. If trapped in the weld pool, the vapor causes porosity as the weld solidifies.

“Through tightly controlled micro-alloying elements in its formulation, OK AristoRod 38 Zn allows the zinc vapor to escape. It addresses the root cause of porosity and spatter associated with standard ER70S-6 wires without the expense or increased risk of burn through associated with metal cored wires,” says Jose Abal-Lopez, Global Product Manager Non and Low Alloyed Solid Wires, ESAB. “ESAB conducted head-to-head tests against other common options for welding galvanized steel. The results were conclusive: OK AristoRod 38 Zn offers the best performance at the lowest total cost of production.”


OK AristoRod 38 Zn is available in diameters of .030, .040 and .045 in. in 33 and 40-lb. spools and 550-lb. Marathon Pacs. It is classified as an AWS A5.18 ER70S-G.

ESAB Welding & Cutting Products is a recognized leader in the welding and cutting industry. From time-honored processes in welding and cutting to revolutionary technologies in welding and cutting automation, ESAB’s welding consumables, equipment, and accessories bring solutions to customers around the globe. For more information, call 1-800-ESAB123.

OK AristoRod 38 Zn is an ER70S-G solid wire with a specially alloyed formula that minimizes porosity and spatter on galvanized steels, significantly reducing or eliminating rejects and rework.

OK AristoRod 38 Zn is an ER70S-G solid wire with a specially alloyed formula that minimizes porosity and spatter on galvanized steels, significantly reducing or eliminating rejects and rework.

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