Fillet weld for socket welding


Published:

2023-03-13

The fatigue strength of socket welded joints is lower than that of butt welded joints due to fillet welds and steep changes in geometry. However, socket welded joints are still superior to other mechanical connections.

Socket welding refers to a pipe connection method in which the pipe is inserted into the embedded wall of the valve, pipe fitting or flange for welding. Compared with butt welding, socket welding is usually used for small diameter pipes of 2 inches and below.

Socket welds use fillet welds. When high structural strength requirements and high leakage risk are design considerations, socket welded joints are a better choice.

The fatigue strength of socket welded joints is lower than that of butt welded joints due to fillet welds and steep changes in geometry. However, socket welded joints are still superior to other mechanical connections.