Can the 316L heat exchange tube be used for a long time in alkali solution with a concentration of 10% at around 60-70 degrees?
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As the question asks, can 316L be used in 10% alkali solution for a long time, the maximum temperature is about 60-70 degrees. Or are there any data charts on the corrosion resistance of 316L, with different concentrations of acid and alkali solutions, and corrosion resistance at different temperatures? grateful!
I read an article that the concentration of sodium hydroxide solution is less than 42%. 304L or 316L can be used in the range of normal temperature to 100℃. The concentration is greater than 42%. Pure nickel or nickel alloy can be used in the range of normal temperature to 150℃.
1See: High-temperature alkali solution concentration, temperature and strain rate on stress corrosion development of 316L stainless steel..._Baidu Library 4 pages Published on: August 20, 2017.2 What alkali
As long as the pressure is not too high, it's totally fine.
OK. “Corrosion Data and Material Selection Manual”