Abstract: This paper describes preparing mockup tubesheet specimens for visual examination using a digital microscope to determine that tube-to-tubesheet joint welds are of the specified size and that ...

Abstract: This paper describes new hitherto unused procedures that combine hydraulic and explosive expanding to produce tube-to-tubesheet joints in tubular heat transfer equipment with thick tubesheets. This ...

Abstract: This paper describes some results of shear load testing of welded and hybrid expanded tube–to–tube-sheet joints. The construction consisted of strength welding SA-688-TP 304N tubes to SA350LF-2 ...

Abstract: This paper discusses factory and field pressure testing of tubular heat transfer equipment such as closed feedwater heaters, steam surface condensers, and power plant auxiliary heat exchangers ...

Abstract: This paper advocates correlating rolling torque or hydraulic expanding pressure with shear load strength instead of percent wall reduction as the criterion of expanding adequacy for thin-walled ...