Electrode Nickel NiCi 3/32 x12 . 4.09kg /ctn

Premium Nickel Electrode for Machinable Cast Iron Repairs

The ESAB Nickel NiCi (likely OK 92.18 series) is a high-quality, pure nickel-cored stick electrode specifically engineered for the welding and repair of cast iron. Designated with the AWS classification ENi-CI, this consumable is the industry standard for applications where the post-weld component requires machining. The electrode deposits a weld metal that is soft, malleable, and free from hard spots, allowing for easy drilling, tapping, and milling after the repair is complete. This makes it an essential inventory item for maintenance departments, machine shops, and heavy equipment repair facilities dealing with gray iron, malleable iron, or nodular cast iron components.

One of the primary technical advantages of this nickel electrode is its ability to perform "cold welding" on cast iron. While preheating is always beneficial for cast iron to reduce thermal shock, this electrode is designed to operate with low heat input, minimizing the width of the Heat Affected Zone (HAZ) and reducing the risk of cracking in the base metal. It features a special coating that generates a soft, stable arc on both AC and DC currents (DC positive or negative), ensuring excellent operability even for welders with less experience on cast iron. The slag system is designed to be easily removable, revealing a clean, smooth bead profile that blends well with the parent material.

This 4.09 kg (approx. 9 lb) carton provides a substantial quantity of 3/32" (2.5mm) diameter rods, ideal for fine detail work, thin-walled castings, and filling small defects such as blowholes or machining errors. The 12-inch length offers good control and maneuverability in tight spaces often found in engine compartments or machinery housings. Whether joining cast iron to itself or to steel, this electrode ensures a sound metallurgical bond with high resistance to porosity.

Typical Applications

• Engine Block Repair: Fixing cracks in cylinder heads, blocks, and manifolds where machining is required.
• Pump and Gear Housings: Building up worn surfaces or repairing fractures in industrial casings.
• Casting Rectification: Filling foundry defects, blowholes, and porosity in new castings.
• Machining Error Correction: Rebuilding areas that were machined out of tolerance.