In the electrode classification E-7018, what does the letter 'E' stand for?

In the electrode classification E-7018, the letter 'E' stands for Electrode. This designation is a part of the standard system used in the American Welding Society (AWS) classification to identify welding electrodes. The 'E' indicates that the item is an electrode used for arc welding processes. Following the 'E', the numbers (7018) describe specific characteristics of the electrode, such as its tensile strength and type of coating. Understanding this classification system is crucial for selecting the appropriate electrode based on the welding application, as it conveys vital information about the electrode's properties and intended use in various welding scenarios.