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...
Dear HTURKAK,
Find here below the edition I am using, last one.
API STANDARD 653
FIFTH EDITION, NOVEMBER 2014
ADDENDUM 1, APRIL 2018
ERRATA 1, MARCH 2020
I understand that the measurement techniques are progressing and that was the reason for my question.
Fully agree with HTURKAK !!
My question was because of API 653 statement here pasted below:
B.2.1 Settlement Measurements
Measurements of tank settlement should be performed by personnel experienced in the types of measurement
procedures being performed, using equipment capable of sufficient...
Sorry for this late reply.
Corrosion mechanism is not well defined yet but its effect is "pitting".
About the fluid: it is a tank that after its final hydraulic test would not have been dried and was abandoned for almost a year.
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.
In essence, if I have to ask, it is because I want to learn from the experience of others while enriching mine.
People asking and people answering is the essence and motive of life of this and all forums.
Two responses with different acceptance criteria against an ugly weld.
It is not the point of experienced or inexperienced, who searches or researches online is because different visions on the same topic can contribute experiences or opinions of different audiences, which can enrich their own...
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.
