How to prevent stainless steel fastener from rusting

The fasteners include high strength bolt, high strength nut, steel structure bolt, steel structure nut and special-shaped bolt and nut

Although stainless steel is called stainless steel, it is not rust free. We must know how to avoid product rust when using stainless steel fasteners.

In the use process, rust is a common phenomenon, but also let us worry about things, this will not only affect the aesthetic degree, but also affect the performance of stainless steel screws. Therefore, we must pay attention to the key points in the process of using stainless steel screws. The following are the four points summarized by the editor for your reference:

1. In the polluted air (such as the atmosphere containing a large amount of sulfide, carbon oxide and nitrogen oxide), sulfuric acid, nitric acid and acetic acid liquid spots will be formed when meeting condensate water, causing chemical corrosion.

2. The organic juice (such as melon and vegetable, noodle soup, phlegm, etc.) adhered on the surface of steel structure screw will form organic acid under the condition of water and oxygen, which will corrode the metal surface for a long time.

3. In humid air, the attachment of dust or heterogeneous metal particles and the condensation water of stainless steel screws connect them to form a micro cell, which causes electrochemical reaction and damages the protective film, which is called electrochemical corrosion.

4. The adhesion of stainless steel surface contains acid, alkali and salt substances (such as alkali water and lime water splashing on the decoration wall), causing local corrosion.

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