Profile: Corum Flange specializes in manufacturing Steel forging, alloy steel forgings, and carbon steel forgings. Our products are used in the construction and maintenance of industries like petroleum, fertilizers, natural gas, ship building, electric power, metallurgical, food processing, pharmaceuticals, paper making, chemical industry & automobile industries. Weld neck flange is drilled to a pipe and transfers stress from the weld neck pipe flange to the file itself. Weld neck flanges are often used for high pressure applications. The method used in welding a flange to a pipe will vary according to the type of flange used. For measured fitting, the inside diameter of a weld neck flange is machined to match the inside diameter of a pipe. Pipes with flanges not only evenly distribute pressure but can be assembled and disassembled easily and generally the materials used to manufacture flanges are iron, carbon, and steel. When fit into a pipe, a flange forms a rim around the base of the pipe.