what does the 7018 on a welding rod mean_what does the 7018 on a welding rod mean

Submerged-Arc Welding Wire is a type of welding wire that has been specifically designed for use in SAW applications. It is a metal wire, typically made from copper or stainless steel, that is submerged in an electric arc to create the weld. This method of welding provides many advantages over traditional arc welding techniques, including higher strength and improved penetration depth. Additionally, it produces cleaner welds with fewer porosity defects than other methods.

In addition, Submerged-Arc Welding Wires come in different sizes allowing users to choose what works best for them depending on their particular application needs; these range from 1mm all the way up 70mm diameter sizes making them versatile enough for any task at hand! Finally due their low cost per meter length coupled with their superior quality output compared against competing technologies like Stick electrodes make them ideal choice amongst professionals seeking value out their investment dollars when selecting tools & consumables required complete various projects requiring high precision joints every single time!