Why does the stainless steel wire rope mesh turn black

First, let's analyze the material of stainless steel wire. Stainless steel is primarily composed of three elements: iron, nickel, and chromium. Different proportions of these elements in the production process can result in varying product properties.

For example, if the iron content remains constant, a higher chromium content results in a brighter stainless steel wire, while a higher nickel content results in a darker wire. If the chromium and nickel content remain constant, an increase in the iron content will also result in a darker wire, affecting its performance.

So, after understanding the material issues above, let's analyze why the wire turns black.

The first scenario: Most cases of blackening are caused by oxidation. That is, the iron element in the wire rapidly oxidizes when heated, turning it black without showing any signs of rust.

The second scenario: During the production process, the wire drawing machine is not properly lubricated, resulting in excessive friction and excessive heat generation on the stainless steel wire mesh surface. This causes the metal elements within the wire to segregate, releasing alloy components and resulting in a blackened surface.

These two factors contribute to the blackening of stainless steel wire. To resolve these issues, you must address these two aspects. For more detailed information, please contact our customer service.