What does the third number on a welding electrode refer to?

The third number on a welding electrode refers to the position in which the electrode can be used effectively. In the standard classification system for electrodes, the three-digit number typically includes information about the tensile strength and type of coating, but it is the third digit that indicates the suitable welding positions, such as flat, horizontal, vertical, and overhead. This aspect is crucial for welders to understand, as it helps them select the right electrode for the specific joint configuration and orientation they are working with. This ensures both the quality and integrity of the weld in various applications.