Search results for query: *

EdStainless, I don't think I understand your question... The stress relief for measurement is measured using the rosette gauge. I am just wondering if total residual stress measured/calculated is representative of the entire wall thickness of the shell, or just the surface to the depth of the...

Can someone explain to me how effective the procedure outlined in ASTM E837 is at determining residual stress in a heavy wall pressure vessel? The situation I have is that a fabricator is proposing to do this test on a recently in-service vessel to determine if pre-heat is necessary prior to...

The material is carbon steel, material specification ASTM A 53. The wall thickness is 0.154 in. with a min wall thickness of 0.135 in. I was not so much concerned with actual hot tap procedure. I am more concerned with the transfer of heat from the welding electrode on the OD of the pipe and...

I am trying to put together a weld procedure for putting a hot tap on a 2" line carrying refrigerant R134a. We have decided to use a split tee fitting and I am trying to develop a welding procedure for this. Considering this is fairly thin wall pipe, I need to calculate how long it takes...

I am trying to determine the "C" value of 1.25 Cr 0.5 Mo steel as it applies to the Larson-Miller Parameter. Can anyone point me in the right direction. Thank you.

Where in the code can I find the required distance for longitudinal joints in multiple can sections? Thank you for your help.

I am trying to learn the ins and outs of reviewing and approving welding procedures. I have many codes and standards readily available so that is not a problem. I was wondering if there are any specific instructions on reviewing procedures? Any help that can be offered will be greatly...

I have a small break vessel that has a bracket on the outside that needs to be moved inorder to facilitate installation. The vessel has already been hydro tested, and does not require PWHT. My question is: Are there any specific requirements as per code that i need to be aware of in order to...

I am a near expert in spreadsheets and have Appendix 13 readily available to me. I am sure I can help. lets see what you have thus far.

I have 10" thru 16" Sch 120 SA 333 pipe in my work scope and my experience has been to keep the interpas temp lower than normal on theis material. Our current procedure for this type of material has a max of 300 deg. F for interpass temp. It seems to me that stress relieving the material at 1100...