Hello everyone, I need to calculate the required thickness for a cylindrical-conical-cylindrical stainless steel tank, and I'm having trouble selecting the formulas.
Which formula should I use?
Do I have to use this first formula for the cone portion?
Or can I use this other one for...
Hello, I work for a client who wants to comply with part 9 of API 653 to repair a bottom that has corrosion on the bottom.
In principle we had considered installing a May 24" patch, but API 653 does not allow it in the critical zone. So we have had to divide it into 4 patches so that it can...
Colleagues, I wanted to tell you how you evaluate the casing of a tank according to API 653. We have some differences of opinions.
To evaluate a corroded area, we determine the current thickness as stated in paragraph 4.3.2 of API 653.
We calculate the minimum allowable thickness (tmin) as...
The definition of E in API 653 refers to the following:
E is the original joint efficiency for the tank. Use Table 4.2 if original E is unknown. E = 1.0 when evaluating the retirement thickness in a corroded plate, when away from welds or joints by at least the greater of 25 mm or twice the...
We have a tank that has a strip of corrosion around the perimeter of the first course.
The corrosion stripe is produced by corrosion under insulation (CUI).
The corrosion strip has a height of approximately 100 mm and is located at the bottom of the first course.
My question is how to...
Hello, I have a question about the interpretation of paragraph 9.11.1.2.2 of API 653 on repairs in the critical zone.
What exactly does at the toe of the internal shell-to-bottom refer to?
I attach the paragraph:
9.11.1.2.2 A welded-on patch plate shall not be used if the covered bottom...
Hi, I have a query on API 653.
If I am currently inspecting a tank built to API-650, which edition of API-653 should I use for inspection and repair?
Should I use the latest edition of API-653?
Regards
