Confirm material grade and electrode for welding.
Chemical composition:
Fe 95.5
Cu 2.5
Cr 1.0
Mn 1.0
Chemical composition is result of key way of shaft
PMI.
Dear MJ Cronin,
Apologies if you felt like this way. I'll share pictures soon. I am not demanding. I am just asking help from experts like you.
Dear SnTMan,
Yes, it's U stamp job.
For 1) the extended tube ends from tubesheet are fused. Probably, fused due high current at the time of welding.
Design code was ASME SEC VIII Div.1 and TEMA class B.
Workmanship and manufacturer due diligence was done but all this happened.
At least you can mention the reference of code of requirements to verify if it's in acceptable range or not. As repair / way forward is possible in your experience...
Dear Reader,
Presently, we have identified defects in final fabricated heat exchanger. Please guide by mentioning the repair strategy of defect with exact reference of ASME Code / TEMA Code reference.
1. Few tubes ends are fused. (5mm Tubes are extended from tubesheet)
2. Pitting observed on...
Due to Re-tubing overall length of the exchanger will be reduced by 20mm, in order to compensate this tube sheet is of 38mm thickness instead of 28mm.
Please explain the effect of Heat exchanger design by this change and any evaluation is required. Can the increase in tubesheet thickness have...
MJCronin,concentration is below 95%. Moreover,the party will manufacture manway by its own and new tank is not possible for them in current situation. However, the thickness of tank is satisfactory in comparison to design.
I need guidelines regarding the possibility of new manyway provision in...
Apologies for not sharing complete details in post. Please find the missing details below:
Service: Concentrated Nitric Acid
Shell Material: Stainless Steel
Tank Type: Welded (5 layers of plates, bottom 2 layers 5mm thick, middle one 4mm, and top 2 3mm thick)
Dimensions: 8000mm height and...
Hello Reader,
I am looking for criteria/factors to be considered while creating new manway in a storage tank of acid. The tank is designed on API 650 and manufactured in 1958. The old man way is not safe with respect to size of opening and is at the top of tank. I am thinking to create new...
