Materials selection for H2S corrosion
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The natural gas supplied by the owner contains 6800 ppm of hydrogen sulfide, and it is a 30MPA natural gas with water content. What material would be suitable in this case?
The original poster can take a look at the standard \"SH/T 3096-2002 Guidelines for the Design and Material Selection of Key Equipment in Facilities for Processing High-Sulfur Crude Oil\"; it can be found by searching on the forum: http://bbs.hcbbs.com/forum.php?mod=viewthread&tid=871131
You might want to take a look at NACE MR 0175 and SY/T O599; I hope it will be helpful to you!
What pressure, temperature,? What are those other requirements?
Pressure 30 MPa, temperature 80°C. Please advise: heating a mixture of high-hydrogen-sulfide natural gas, crude oil, and water in a coiled tube using water
Carbon steel resistant to hydrogen sulfide stress corrosion.
Hello, my friends have used sulfur-resistant metal materials (carbon steel); I’ll ask them for you. So far, they’re working very well!
Using ordinary carbon steels such as 20R, 08CR2ALMORÉ, as well as stainless steels and duplex steels carries certain risks; after all, the high partial pressure of hydrogen sulfide along with moisture increase the susceptibility to wet hydrogen sulfide stress corrosion, leading to premature failure and leakage during use. It is recommended to use the nickel-based alloy 08825, which might be a better choice, although it requires a higher initial investment
What country is nickel-based alloy 08825 from? Is there a similar material available in China?
The domestic equivalent of the American ASME N08825 is N1402