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Special hard 301 stainless steel strip belt rust causes

Special hard 301 stainless steel strip belt rust causes

Time:2022-04-02 Source:Wuxi Jianuo Special Steel Co., Ltd.

Special hard 301 stainless steel stainless steel rust prevention mechanism is the formation of alloy elements dense oxide film, isolated from oxygen contact, to prevent continued oxidation. So stainless steel is not “never rust”.

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Possible causes: 1. The presence of chloride ions in the use environment. Chlorine ions are widely present, such as salt, sweat, seawater, sea breeze, soil, etc.. Stainless steel in the presence of chloride ions in the environment, corrosion quickly, even more than ordinary low carbon steel. So there are requirements for the use of stainless steel environment, and it needs to be wiped frequently to remove dust and keep clean and dry. (So that he can set a “misuse”.) The United States has an example: an enterprise with an oak container containing a solution containing chloride ions, the container has been used for nearly a hundred years, the last century in the 1990s plans to replace the oak material is not modern enough, the use of stainless steel, 16 days after the replacement of the container leaked due to corrosion.

2. No solid solution treatment. Alloying elements are not dissolved into the matrix, resulting in the matrix organization alloy content is low, poor corrosion resistance.

3. This material does not contain titanium and niobium has an inherent tendency to intergranular corrosion. The addition of titanium and niobium, together with stabilization treatment, can reduce intergranular corrosion. In the air or chemically corrosive media to resist corrosion of a high-alloy steel, stainless steel is a beautiful surface and good corrosion resistance, without the need for surface treatment, such as color plating, and play the inherent surface properties of stainless steel, used in a variety of steel, commonly known as stainless steel. The representative performance of 13 chromium steel, 18-8 chromium-nickel steel and other high-alloy steel.

301 stainless steel strip