are internal or external rims or ridges that are used to strengthen or connect objects together. Flanges are often screwed or welded to connect pipes or strengthen wheels. Flanges can be made from material such as steel, carbon steel, galvanized or stainless steel, cast iron, brass aluminum, copper, PVC, and polypropylene. Types of flanges include weld neck, socket weld, slip-on, threaded, pipe flange, blind flange, and lap joint. Blind Flanges are used as plates that cover or close the end of a pipe. Pipe flanges are used to mechanically connect two pipes together through pieces of equipment like a valve, tee, and choke. Weld neck flanges have a circular fitting, and a protruding rim on the circumference, and the short ones are used to butt weld a pipe. The long ones are more suited for process plants. Threaded flanges can be joined to pipes without, or with minimum welding and are suitable for small-sized pipes and in explosive areas like gas stations and plants.Get the best selection of flanges available in the market today. MRO Supply stocks a wide range of flanges to fit any application.