Reasons for leakage in 304 stainless steel tubes
Thread Content
This post was last edited by Chen Ming on 2018-12-11 at 15:30. A temperature control transformer is now in use; the designed temperature for the soft water in the tube side is 170 degrees, while the designed temperature for the gas on the shell side is 280 degrees. The equipment made of 16MnR has been in use for 3 months, and cracks have appeared in several tubes as shown in the image. The tubes are products from reputable manufacturers – please analyze the cause of these cracks.
Where is the tube leakage? Is it at the tube tip or somewhere else?
A picture is also needed; otherwise, it’s impossible to tell
Regarding the diagram, what is the pressure in the transformation section: 50 kilograms or 25 kilograms?
First, is it possible that no expansion joint was installed? Second, is the soft water of qualified quality? Cracks can also occur if the chloride ion level is too high; thirdly, there may be issues with the welding process.