Can 30% (v%) ethylene glycol solution be transported using carbon steel pipes?
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Can 30% (v%) ethylene glycol solution be transported using carbon steel pipes? Ethylene glycol solutions are corrosive to both carbon steel and stainless steel; what material should be used for pipeline construction?
At temperatures below 80°C, CS is completely sufficient; however, no cleanliness requirements are necessary. If the temperature is high, 304 will suffice~
If you are concerned, you can use lined pipes; what is the maximum temperature allowed?
This post was last edited by nj1952 on 2017-6-12 at 16:15. (1) Carbon steel: ethylene glycol (concentration 50%, 25–80°C); material corrosion rate: good, <0.05–0.5 mm/year. (2) 304 stainless steel: ethylene glycol (any concentration, 25–100°C); material corrosion rate: excellent, <0.5 mm/year. (3) If the medium temperature is below 80°C, it is recommended to use carbon steel pipes
Thank you, Haiyou. Is there a detailed source for this data?
If absolute corrosion resistance is desired, there are several solutions available:
If absolute corrosion prevention is desired, there are several solutions: 1. Nitrogen purging during the use of ethylene glycol to isolate it from oxygen and reduce the formation of acidic substances as a result of the oxidation of ethylene glycol. 2. The pipe material is stainless steel. 3. Adding ethylene glycol as a corrosion inhibitor prevents ethylene glycol-induced corrosion to the greatest extent possible. If you don’t understand, feel free to contact me: Han from Jiangsu Aiersi Chemical Co., Ltd., phone number 17312000051