Why Do Some Stainless Steel Filter Elements Turn Black?

The stainless steel filter element occasionally turns black during use. What is the cause? This is still related to the constituent elements of the original material.  As a Stainless Steel Wire Mesh supplier, let us analyze the blackening phenomenon of the stainless steel filter element together.

Stainless Steel Wire Mesh

The main elements of the stainless steel filter element are iron, nickel, and chromium, which are alloy products of these three metals. The three metals can be produced in different proportions. The stainless steel products obtained also have different properties and different appearances. When the iron content is constant, the higher the chromium content, the brighter the stainless steel wire, and the higher the nickel content, the darker. If the content of chromium and nickel remains the same, the paste will become darker if the content of the paste increases. This is the judgment of the initial appearance of the product.