Steel Core Design And Tensile Properties Of Copper-clad Grounding Rods

ground rod 8 ft is generally composed of a high-strength cold-rolled steel core and an electroplated copper layer. A stable copper layer is formed on the surface of the steel core through a continuous electroplating process. This structure combines the mechanical and electrical properties of the metal.

Tensile properties are mainly determined by the steel core, and the tensile strength value of threaded copperbond earth rod is higher than the basic mechanical requirements for copper bonded earthing rod. Typical values can reach the hundreds of megapascals, which means that copper bonded ground rods can withstand relatively large forces before the material breaks under various working conditions such as hammer driving and soil movement.

The manufacturing process directly affects the tensile properties of earthing rod copper steel. Cold-rolled steel cores improve tensile strength by refining the grain structure, while the electroplated copper layer needs to form a strong metallic bond with the steel substrate to avoid peeling or localized stress concentration under stress.