Exothermic Welding Material:

Exothermic welding is a self-sufficient process to achieve high quality electrical connections between metallic conductors such as copper, copper alloy or steel.

The exothermic reaction occurs in a graphite mold manufactured based on the dimensions of the conductors to be welded. A mold can perform over 60 welds when used under normal conditions. The reaction takes only a few seconds and does not requires any external source of power, making the exothermic process particularly handy on site. 

Exothermic welding is commonly used when building sub-station earthing circuits, power station, for cathodic protection, lightning protection, and utilities and so on as it offers many advantages when compared with traditional crimped or mechanical connections.

The process provides a molecular bond that is not affected by short-circuit current. Several experiments have shown that conductors themselves melt before the exothermic weld point is affected. As the point of fusion of the exothermic connection is substantially identical to copper and with a cross-section superior to the conductors.

Material such as copper alloy, bronze, stainless steel, carbonate steel (railways) can be welded in such way. The weld point is an alloy without any dielectric influences, totally insensitive to corrosion and demonstrating optimum mechanical characteristics with time.