Do hydrogen environment pressure vessels require hydrogen-resistant steel plates?
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Do hydrogen environment pressure vessels require HIC-resistant steel plates? Under operating conditions, the molar concentration of hydrogen is 83%, with a small amount of water present; the operating temperature is 40°C and the operating pressure is 2.83 MPAG.
It is generally not needed below 180 degrees. The specific theoretical basis can be found in the Nelson curve of HG 20581, to select hydrogen-resistant materials.
Yes, pressure vessels in a hydrogen environment require hydrogen-resistant steel plates (HIC) to prevent hydrogen embrittlement. Hydrogen can increase the brittleness of steel materials, thereby affecting the safety and lifespan of containers. Under the operating conditions you have specified, it is essential to select an appropriate hydrogen-resistant steel. .
HIC is used to prevent corrosion from hydrogen sulfide, not hydrogen
Huh? Isn’t HIC a steel plate resistant to hydrogen-induced cracking? How did it become anti-H2S?
This post was last edited by Le Tian_D51j2 on 2024-10-17 at 12:58
This post was last edited by Suibing on 2024-10-11 07:48. Oh? Are there standards too? Really, I really don’t know. I’d be happy to hear more about it; I hope the chief instructor will kindly share his knowledge with me.
Determining hydrogen damage and the incubation period for hydrogen damage according to API 941-2016
This post was last edited by Le Tian_D51j2 on 2024-10-17 at 12:59