What thicknesses of base material are suitable for different specifications of carbon arc gouging carbon rods?

What thicknesses of base material are suitable for different specifications of carbon arc gouging carbon rods?

For plates < 6mm thick: φ4–φ5 carbon rods are preferred to avoid excessive current burning through the base material. Suitable for fine rework and shallow groove planing of thin plates.

For plates 6–12mm thick: φ6–φ8 carbon rods are the mainstream choice, balancing planing efficiency and shaping quality, suitable for routine operations such as root clearing and beveling.

For plates > 12mm thick: φ8–φ12 carbon rods are used. High current combined with a large-diameter carbon rod meets the needs of deep groove planing and high-efficiency planing of thick plates.