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Dear Team, I want to check the requirement for Tubesheet to 'cone' shell joint welding and its stresses. please find below snap for the joint as yellow highlighted. Is this joint acceptable by ASME Sec VII div.1 or TEMA.? Request you to highlight how to evaluate this joint and do we foresee...

Dear All, Can anyone tell me the size limitation upto which we can go for seamless pipe or welded pipe. Specification SA 106, SA 312, SA 790 calls for seamless pipe, but above NPS 12 our supplier is giving welded pipes? What should be the criteria of acceptance for welded pipes.? Are there...

Hi, Can anyone tell me the difference between a column and a vessel and a reactor. (P.S. : Please explain me considering the geometry and the service)

Hi, Can anyone explain me the difference between service bolt material and structural bolt material and why cant we use SA-193 B7 material instead of SA 320 Gr. L7 (P.S. : Client has specified Anchor chair material sa SA 320 Gr.B7 and we are having SA-193 B7 in stock) DOES the metallurgy or...

Hello everyone, I have a doubt and confusion, Please explain me why do we use LMP (Larsen-Miller Parameter) and HP (Hollomon Parameter), and do we use it only for 2 1/2 Cr - 1 Mo. materials (is it because we are using API - 934 A) ..? WHAT is the use and basis of these parameters.. please...

Hello everyone, Can anyone provide me the basis of radiography level for lethal service, like why do we give full radiography for the lethal service job. (UW-2(a) and UW-11(a)(1) - All butt welds shall be 100% radiographed, agreed but why ). Also in some specification it is given that above 50...

Hi, I am very new to the pressure vessel industry. I would like to know the basic concept of the pressure vessel design. Below are my queries.. 1. How is the pressure maintained in the pressure vessel and how do we decide the working pressure and design pressure of the equipment. ? 2. What...

Hi, I have one query and doubt regarding welded pipes. Can we use welded pipes instead of seamless pipes. The stockiest has given us the option of welded pipes because he is not having the pipe over 20” in seamless condition for the required Schedule ( The pipes are of SA 312 TP 316L & SA790...