Flux cored welding wire is a type of welding wire that is used in various welding applications. It consists of a metal core surrounded by a flux material which helps to reduce oxidation and improve weld quality. The flux also helps to prevent porosity and other defects in the weld, making it one of the most reliable and cost-effective welding materials available. Its use can be seen in industries such as automotive, construction, shipbuilding and more. This article will discuss what flux cored welding wire is, how it works, and its uses in different industries.