By Eng. Carlos Molina

To download 52 questions for your own study, based in SOIL and CAUSTIC corrosion in the API 571 RP, click here

Both DM ares listed in the API 571 RP under the “Uniform or Localized Loss of Thickness” (more…)

By Carlos Molina

To download 38 more questions for your own study, click here

CORROSION UNDER INSULATION

Corrosion Under Insulation (CUI) is the corrosion of piping, pressure vessels and structural components resulting from water trapped under insulation or fireproofing.

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Probability of failure in Corrosion Under Insulation is drove at least by 10 critical factors, making CUI one of the most common types of damage mechanisms. It attacks more agressivelly pipes of 4″ diameter or less. That is why in some cases, if possible, designers will choose stainless steel over carbon steel when there is probability of CUI in piping. Besides, the older the piping or equipment and insulation system, CUI is more likely to appear. (more…)

By Carlos F Molina

Choosing to read this article is choosing to begin the path to API certifications. The most important objective of apiexam.com is to give affordable, safe learning advice in order for you to pass the API certification examinations, beginning now, and not having to make the course and spend the bunch of money it costs.

First a little self-promotion. Check the API 653 Video Course here

The way I see it, if you already decided you want to try certification, you have 4 options…..

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