Things You Don’t Know About Using Stainless Steel Screws

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In daily life, stainless steel screws are commonly found around us. The stainless steel in question is austenitic stainless steel, with the main raw materials being austenitic grades such as 302, 304, 316, as well as the \"low-nickel\" grade 201. As we all know, rusting is a common phenomenon during use, and it’s something that causes trouble. It not only affects the appearance but also impacts the performance of stainless steel screws. Therefore, Jingbo Cloud Commerce reminds you to pay close attention to the key points when using stainless steel screws: 1) If organic substances such as juices from fruits and vegetables, noodle soup, or phlegm stick to the surface of the stainless steel screws, they will form organic acids in the presence of water and oxygen; over time, these organic acids will corrode the metal surface ； 2) The accumulation of dust or foreign metal particles, together with the condensation water on the stainless steel screws in humid air, forms a microcell between these elements, triggering an electrochemical reaction that damages the protective coating; this is known as electrochemical corrosion ； 3) In polluted air (such as air containing large amounts of sulfides, carbon monoxide, and nitrogen oxides), when it comes into contact with condensed water, sulfuric acid and acetic acid droplets are formed, causing chemical corrosion ； 4) Acids, alkalis, and salts adhere to the stainless steel surface (such as alkaline solutions or lime water used in wall decoration that splash onto it), causing localized corrosion. In the above four situations, it is necessary to try to avoid them during use; proper maintenance is essential to extend its service life.