Nitric acid storage tank
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The company wants to construct a nitric acid dosing tank with a capacity of around 300 kilograms. Is it better to use stainless steel or some other alloy material, and which one is cheaper?
The concentration and temperature of nitric acid? Depending on concentration and temperature, options include stainless steel, pure aluminum, C4 steel, and more
In our factory, for dilute nitric acid with a concentration of 40-43%, we used 304 material before, but now we use 304L
The key lies in the concentration of nitric acid and the temperature
Agree with the opinion above; the key lies in nitric acid concentration and temperature. The tank material chosen varies depending on the concentration and temperature. If cost savings are desired, then the most suitable option must be chosen. If cost is not a concern, then choose the best and safest one.
Nitric acid is an important chemical raw material that is widely used in many sectors of the national economy. Whether producing nitric acid or using it, the issue of its corrosiveness arises. Nitric acid is a strong oxidizing agent, and even dilute nitric acid possesses strong oxidizing properties. Stainless steel has good corrosion resistance due to its tendency to form a passive layer in dilute nitric acid. It can be said that almost all stainless steels exhibit fairly good corrosion resistance in dilute nitric acid. Since 18-8 type Cr-Ni austenitic stainless steels, such as 0Cr19Ni9, 00Cr19Ni11, 0Cr18Ni11Ti (or 1Cr18Ni9Ti), etc., possess not only excellent resistance to dilute nitric acid but also good mechanical properties as well as comprehensive properties regarding formability and weldability, they are therefore
The friend on the 9th floor covered it quite comprehensively. Under normal circumstances, when choosing materials, we mainly consider the temperature and concentration of the medium. Different temperatures and concentrations correspond to different materials. The most common example: carbon steel used for storing concentrated sulfuric acid cannot be used for dilute sulfuric acid.