How long does 5%sulfuric acid corrosion stainless steel (such as 304)?

Use Wang Shui

Do electrolytic acceleration experiment or check data

How long corrosion depends on the rate of corrosion.The corrosion rate of the same material is generally related to the medium temperature, concentration, and flow rate. 5%of the sulfuric acid at room temperature is less than 0.0025mm/y at room temperature, which is almost no corrosion.Clear good parameters, determine the corrosion rate, and calculate the corrosion time is simple according to the thickness of the sample.Note that the surface status, processing status, thermal treatment status, etc. will affect the corrosion performance of the material.
In short, when talking about corrosiveness, it is meaningful to clarify the working conditions.

I can only say that it is too slow
Use mixed acid

!