Socket Weld and Threaded Fittings (ASME B16.11)
The two main types of forged fittings are the so-called socket weld fittings (which are connected to pipes by fillet welds) and threaded fittings (the pipe is screwed onto the fitting). The ASME B16.11, MSS SP 75, MSS SP 83, MSS SP 95 specifications cover forged fittings (socket weld and threaded) to fit ASME B36.10 and ASME B36.19 …