Which electrodes operate in DCEP?

The correct answer reflects the understanding that certain electrodes are designed to operate on Direct Current Electrode Positive (DCEP). In welding, DCEP refers to the configuration where the current flows from the electrode to the workpiece, which results in several beneficial effects such as better penetration and arc stability.

Electrodes that operate on DCEP typically include those classified as low hydrogen or certain types of stainless steel electrodes. These electrodes are designed to take advantage of the higher heat produced at the electrode when using DCEP, allowing for improved fusion and weld integrity.

In this context, the range identified as B, which spans from 1 to 6, specifically includes those electrodes acknowledged for compatibility with DCEP. The characteristics and formulations of these electrodes make them suitable for applications that require strong, durable welds in various steel types. Understanding the properties and appropriate uses of DCEP-operating electrodes is crucial for welders to achieve optimal results in different welding applications.