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English Translations » 【化工工程交流】 » At what concentration of wet hydrogen sulfide in the fluid w

At what concentration of wet hydrogen sulfide in the fluid within the pipeline is post-weld heat treatment required?

2017-07-21View Original

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I would like to know which standard specifies this. Please advise, thank you O(∩_∩)O
Reply #22017-07-21
Regarding your question, you may follow the provisions of 6.3.5 in the \"SHT 3059-2012 Code for Selection of Materials for Pipelines in Petrochemical Industries\". For your reference
Reply #32017-07-21
Thanks, buddy. One more question: are there any requirements regarding the H2S level here? It can’t be that heat treatment after welding is required even for H2S levels in the range of a few ppb, right? Thanks
Reply #42017-07-22
You can determine whether post-weld heat treatment is necessary by referring to the corrosion curves of various steels in high-temperature sulfur as specified in C.1 of \"SHT 3059-2012 Standards for Selection of Materials for Petrochemical Piping\", taking into account factors such as sulfur content, temperature, and the corrosion rate of the selected steel. For steel, sulfur content and temperature are crucial. For your reference
Reply #52017-07-22
Thanks for the advice, buddy. I’ll think about it more
Reply #62017-07-22
Thanks for the advice, buddy. I’ll think about it more

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Translated at 2026-07-26 13:27:43

Original: https://bbs.hcbbs.com/thread-1807282-1-1.html

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