At neutral temperature and without considering other factors, what concentration of chloride ions can duplex steel withstand?
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At neutral temperature and without considering other factors, what concentration of chloride ions can duplex steel withstand?
At neutral temperatures, duplex steel can tolerate a chloride concentration of about 3000 ppm (i.e., 0.3%). It should be noted, however, that this is only an approximate estimate; the actual load-bearing capacity is also affected by other factors such as the form of chloride ions, temperature, pressure, and so on. Therefore, in practical applications, it is necessary to conduct evaluations and make selections based on the actual circumstances. .
Such estimates are actually not very reliable, as they take into account only temperature and neutral conditions; other factors related to the medium, especially those components that may cause corrosion, have a significant impact on the corrosion resistance of the material chosen. It is best to conduct a hanging slice test using an actual medium to examine the corrosion situation. This will not require much manpower, resources, or time, but it will allow for more accurate conclusions.
There are many types of corrosion involved; let’s take a look at one up close.