The pH is around 1; the main components are sulfuric acid, sodium sulfate, and salicylic acid. The temperature is around 40°C – can 304 material be used?
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The pH is around 1; the main components are sulfuric acid, sodium sulfate, and salicylic acid (around 1500 ppm), and the temperature is around 40°C. Can 304 material be used in this environment? If that won’t work, what material is good to use?
It’s too low; it won’t work. A lining is necessary
Do you mean the pH is too low? ?
304 definitely won’t work; 316L can be used, but it still won’t work at temperatures of 50°C. It’s best to use a fluorinated lining.
If these are strong acids, try fiberglass material; the corrosion resistance of resins is indicated as being satisfactory in the specifications. Dilute sulfuric acid, 75% or less. :)
Fiberglass reinforced plastic or carbon steel lined with fluorine are both acceptable; 304 is not suitable