How long does it take for sulfide stress cracking to occur?

Asked by Dan01 5 years, 11 months ago | 1 Answers

What are the conditions for sulfide stress cracking and if the conditions are present how long does it take to occur?


1 Answer

1
odadmin 5 years, 11 months ago

The answer to the first part of your question can be found here:

http://www.ognition.com/8/sulfide-stress-cracking

 

Answer to the second part:

If all the conditions required are present, it will still take come period of time for the sulfide stress cracking to occur. This depends on the following factors:

  • Stress Level – higher the stress, lower the time to failure
  • Hardness of the steel – higher the hardness, lower the time to failure.
  • Hydrogen sulfide concentration – higher the concentration, lower the time to failure.
  • pH of the fluid – lower the pH, lower the time to failure.
  • Temperature -at ambient conditions, lower the time to failure, above 150 ºF the chances of failure decreases.

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