How is electrode classification primarily determined?

Electrode classification is primarily determined by the characteristics of the weld metal it produces and the type of usage for which it is designed. This includes factors such as the chemical composition of the rod, its mechanical properties, and the specific applications for which it is suited, such as whether it’s for structural welding, pipe welding, or other specialized tasks. Different electrodes are formulated to provide specific properties like tensile strength, ductility, and oxidation resistance, which are essential for ensuring high-quality welds that meet industry standards.

Other factors such as physical appearance, cost, or manufacturer reputation may play roles in a welder's choice of electrode, but they do not fundamentally define the classification. The classification focuses on performance-related characteristics, making it crucial for welders to select the right electrode for their specific project needs to achieve optimal results.