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Acid resistance of 304 stainless steel plate

Time:2018-09-13 18:30Author:jawaysteel
304 stainless steel plate belongs to austenitic stainless steel. At this time, we will also check the Corrosion Data and Material Selection Manual. For 100% carbonic acid, it is not resistant to corrosion at 900 °C, and the corrosion resistance is excellent when it is lower than 900 °C. At a saturated concentration of carbonic acid, not exceeding 100 ° C, the corrosion resistance will be better.
 
When it comes to the 304 stainless steel plate is resistant to any medium or is not resistant to any medium, 304 is resistant to carbonate, wet hydrogen sulfide, high temperature S corrosion, low temperature lye, low temperature acetic acid is not resistant to halogen ions, even more Sulfuric acid, hydrochloric acid;
 
After that, when it comes to the corrosion resistance of 304 stainless steel plate, for this addition process, the surface treatment of 304 is passivated by strong acid and alkali cleaning, and the effect will be quite good. At present, many industries choose industrially. It will use 98% concentrated sulfuric acid, 68% or above concentrated nitric acid or corrosion inhibitor is more common, as the acidity and alkalinity of water, it will generally use water as a medium to participate in a certain proportion of acid-base solution.
 
Then, when the 304 stainless steel plate is used, the acid resistance is tested. For the measurement of the PH range, the main one is to have a targeted discussion. The 304 stainless steel plate, the manufacturer, the domestic, the import, the component content, and many other factors. influences. Then, in terms of corrosivity, pitting corrosion, local corrosion, or corrosion time, corrosion environment, will directly affect the 304 good corrosion resistance.
 
The 304 stainless steel plate is a versatile stainless steel material that is more rust resistant than the 200 series stainless steel.
 
The high temperature resistance of the 304 stainless steel plate is also good, and it will be as high as 1000-1200 degrees. It has excellent stainless steel corrosion resistance and good intergranular corrosion resistance for 304 stainless steel sheets. For oxidizing acids, 304 stainless steel has a relatively strong corrosion resistance in the nitric acid below the boiling temperature of the next concentration ≤ 65%.

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