IBR Socket Weld Flange is connected to the pipe using a single fillet socket weld executed on the external sides of the steel flanges. According to ASME B31.1, to execute an industrial flanges connection using a socket weld flanges, the pipes shall be at first fitted in the socket of the flanges until it reaches the bottom of the flange, also it should be lifted by 1.6 mm and ultimately welded. Socket Weld Flange is used for high pressures and small size pipelines that do not transfer largely sharp fluid.