Dear colleagues,
I am looking for information and experience from some colleagues regarding the use of the LSM (Large Standoff Magnetometry) technique for aerial and buried piping inspection.
Any input will be appreciated.
Dear mates,
I am looking for information/reccomendation on the best product to coat a stainless steel/carbon steel interface zone inside an amine tower working @ 100°C to prevent acid corrosion by CO2.
Any input will be grateful.
Dear gents,
What would be the appropriate way to qualify a procedure for the welding of stainless steel structural profiles, without filler from the outside and with filler from the inside, GTAW process.
Any input will be appreciated.
Dear colleagues,
I am looking for a record of boilers manufactured by HYUNDAI in Korea between the years 1998 and 2002.
Any information will be appreciated.
Thanks.
Dear mates,
A coating contractor has applied a HEMPEL epoxi (NOVOLAC)coating of high solids at erratic DFT 300/500 µm and adhesion test values also erratic 5/8 Mpa (100% adhesive failure), which would be a normally acceptable adhesion value for this product and DFT.
Thanks for any input.
Dear mates,
I can not find any table that tells me which wire IQI to use for single wall technique IQI film side either class A or B and I cannot find any where it says that the film side IQI for single wall technique can not be used.
In many situations there is no access to the interior of the...
Dear mates,
Please have a look on the attached pic.
Fluid is low pressure water.
Is it accepted as per ASME B31.3
Thanks.
https://files.engineering.com/getfile.aspx?folder=cf126562-3d2e-4a52-9e51-1094a675a508&file=TEE_PREFABRICADA.jpg
Dear mates,
A pressure vessel was designed and built in accordance with ASME VIII - Div. 1, a year later it was decided to put it into service and it was discovered that the water left inside the vessel as a result of the hydraulic test generated serious damage by corrosion inside it. and they...
During a weld failure analysis (SS 304 FCAW G) we concluded that the problem would have been due to the lack of acid cleaning (Pickling & passivation) of the weld.
Final acid cleaning is not shown as variable of any kind for that welding process, being that in SS welds that final cleaning is...
Dear mates,
Does any structural code provide any guidance on the minimum distance between groove / full-pen welds? I did not find anything in AWS, AISC.
Any input will be appreciated.
Dear mates,
For a qualification test weld to meet the requirements for visual examination, the weld shall be free from cracks,
inadequate penetration, and BT and must present a neat workman-like appearance.
"Neat workman-like appearance", How is it evaluated?
The weld was free of cracks...
To apply the recommendations in API 1104 - APP B - In service welding, it is mandatory that the fluid (oil, gas) must be flowing.
The problem we see is that applying welding on the outer surface without oil / gas fluid circulating inside the pipe, acting as a coolant / heat sink, could generate...
Dear mates,
In the refining industry speaking of PMI, it is justifiable to have a gun that includes the determination of C, in other words when a PMI gun would be needed, for what specific uses.
Any comments, suggestions, opinions, etc., are welcome and grateful.
Dear mates,
Question:
During the evaluation of radiographic welds, the piping base material was observed corroded.
That indication should be evaluated under the provisions of what code.
Any input will be appreciated.
Dear mates,
It is stated in API 653 - dimensional tolerance for plumbness (10.5.2) & for roundness (10.5.3) my doubt is about where and how many points should be measured, since there is not statement in the Std. about it.
Any input is appreciated.
This is my question:
What should be factor "E" (ASME B31.3 - Formula Design) after a fillet welded patch is installed in a process piping in order to arrest a leak.
Any input is appreciated.
Dear folks,
I´m looking for some information about the subject in order to inspect a tank as per API 653, some people is talking about 0,1" but nothing like this is stated in API 653, as per API 650 new connections have minimum 1/2".
Thanks in advance for any information on the subject.
As per ASME B31.3, gap before welding approximately 1.5 mm (1/16").
I´m checking sw gap with RT, it means that any gap less than 1.5 mm is to be rejected?
Any input will be appreciated.
Dear all,
My contractor is telling me that conventional UT examination is not feasible on piping welds less than 9 mm. thickness.
Is that right?
Thanks for any input.
