$98.13 USD
UTP 81 Electrode
Description
UTP 81 features a smooth arc, high deposition efficiency, and low penetration. It offers good weldability properties on cast irons. This is a metal iron-based electrode designed for cast steels with poor weldability and chemically altered cast iron. Non-machinable.
Application Field
UTP 81 is a non-machinable electrode with a graphitic coating for welding poor-quality cast iron, including sand-embedded, burnt, or chemically contaminated castings. It is a cost-effective electrode with a deposit that hardens upon cooling.
Welding Instructions
The welding area must be machined to a metallic shine. Prepare a U-shaped or double-U groove (the use of the UTP 82 AS electrode is recommended for gouging/beveling). Use the lowest possible amperage and a short arc, keeping the electrode in a vertical position. Avoid heat buildup and maintain an interpass temperature of no more than 60°C. Apply as spot welds until the contaminated area to be surfaced is covered. After application, grind each spot weld down to half of its thickness.



