The corrosion resistance of stainless steel wire mesh is closely linked to its material composition, and there are various theories that explain its passivation phenomenon. Let's explore a couple of examples:
According to the chemical theory, when stainless steel comes into contact with different media, a thin layer of film, primarily composed of Cr2O, forms on its surface. This film acts as a protective layer, preventing corrosion of the underlying metal matrix. This film is very dense, making it difficult to break down, and effectively shields the metal from corrosion. In stainless steel with a chromium content above 10.5%, the thickness of the film is typically only a few microns.
Another explanation comes from the electronic theory, which states that the passivation of metal is related to the presence of unfilled electronic layers. In stainless steel, as chromium absorbs electrons, iron (Fe) atoms lose electrons and become passivated. Some researchers suggest that when the chromium content reaches 1/8 (12.5%), the electrode potential of stainless steel can jump from 0.56V to +0.2V, indicating an improved stability of the metal in electrolytes and reduced vulnerability to corrosion.
It is important to note that the corrosion resistance of stainless steel is not absolute, but rather depends on various factors such as the type of medium, concentration, temperature, pressure, and flow rate. Different environments can affect the corrosion behavior of stainless steel differently.
At MAISHI MFG, we offer a wide range of stainless steel wire mesh materials, including 304, 316, and 316L. These materials have different elemental compositions, resulting in varying levels of corrosion resistance in acidic and alkaline environments.
MAISHI MFG-Best Partner of Mesh. We are dedicated to providing exceptional stainless steel wire mesh solutions. Feel free to reach out to our MAISHI team for further technical support and inquiries.
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