what does the 7018 on a welding rod mean_stick welding 7018 1 8

The use of Submerged-Arc Welding Wire can provide several benefits to metal fabricators and engineers who are looking for efficient and reliable ways to join their materials together. The main advantage of using this type of wire is its ability to penetrate deeper into the workpiece due to the increased current density resulting from submerging the electrode into an electric arc bath prior to welding. This allows for greater control over heat input which ultimately decreases distortion during fabrication processes. Furthermore, since there is less spatter created when working with SAW wires compared to other types of wires such as Solid MIG/MAG Wires, they also offer more consistent results throughout multiple projects without having to adjust parameters as much between jobs – reducing time spent on setup and troubleshooting while increasing overall productivity levels by eliminating costly downtime associated with frequent machine adjustments or replacements needed after each job run.