Used to connect pipe systems to other pieces of piping or equipment, flanges are the second most popular method of assembly behind welding. Adding flexibility to pipe systems by improving ease of disassembly, three items that commonly comprise a flange are pipe flanges, gaskets, and bolting. Of these three components, when building a typical flanged connection, the materials that comprise the bolt and gasket are often the same. Capable of also being connected with parts made of certified materials, flanges are most often manufactured out of stainless steel. Other common, but not as frequently used, flanges include Monel, Inconel, Chrome Moly, and other types depending on the application. To better understand flanges, we will go over their common types, their intended purpose, and how they can be used to best fit your applications.