Can 304 material be used for high-temperature alkalis?
Thread Content
Our company has newly installed an alkali evaporation system; the temperature is around 90 degrees and the concentration is 50%. We plan to use E304 material for this purpose – is that suitable?
Reply to 1# houmeihong11: What type of base are you? Neither sodium hydroxide nor potassium hydroxide can withstand temperatures of 90 degrees; those with a mass fraction of 50% are not suitable either. For NaOH, at concentrations of 30–50% and at 80 degrees, corrosion occurs at a rate of 0.5–1.5 mm per year, while for KOH, the same conditions result in a corrosion rate of 0.05–0.5 mm per year.
Thank you, the person above; we use sodium hydroxide
For specific details, refer to standard SH-3059
The responses on the second floor were professional; there are indeed many experts among the Haiyou users.