Is 304 stainless steel suitable for sulfuric acid at a concentration of %1 at an operating temperature of 200 degrees?
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I checked the \"Corrosion and Corrosion Prevention Handbook\": in a sulfuric acid medium at %1 concentration, the corrosion rate of 304 material at 20–30 degrees is 0.002 mm/year, indicating the best corrosion prevention performance. However, at certain concentrations, the corrosion rate caused by sulfuric acid increases significantly as the temperature rises; so is it still appropriate to use 200 to 304 materials at operating temperatures of this range? ? Lacking experience, I earnestly request guidance from experienced seniors. Thank you.
At 200 degrees Celsius, 304 becomes unsuitable for use in a 1% dilute sulfuric acid medium. You may consider using nickel-based or iron-nickel-based materials, or chromium-nickel duplex steels containing Mo and Cu.
Using 316L will be no problem.