A pipe carrying steam was exposed to over temperature event for approx. 2 hrs. (180 C above the design temperature). This happened due to malfunction of VHP (very high pressure) let down valve. Results of the external visual inspection revealed that no permanent damage to the piping. However, client concerns long term structural damage to the material. What are the metallurgical tests that I should conduct to see any damage to the material?
Do I have to perform accelerated creep testing?
material grade: SA 106 B nominal size 6", schedule 80 Xtg.
Red Flag Submitted
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. The Eng-Tips staff will check this out and take appropriate action.
Reply To This Thread
Posting in the Eng-Tips forums is a member-only feature.
Additive manufacturing, also known as 3D printing, is quickly becoming an industry standard for product manufacturing in a variety of applications, including medical devices, aviation and aeronautics parts, and transportation components. Download Now