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304 Sanitary Stainless Steel Pipe and Carbon Steel Pipe Can not Be Stacked Together

Source:Iris Liang Time:2018-11-5 9:37:18

Strictly speaking, 304 sanitary stainless steel pipes and carbon steel pipes cannot be stacked together because the materials of carbon steel pipes and stainless steel pipes are different. In a humid environment, if carbon steel pipes and stainless steel pipes are stacked together, It is easy to produce a chemical reaction that destroys the protective layer of the stainless steel tube, causing the stainless steel tube to rust. SEKO Machinery's Energy Saving Bright Annealing Machine could eliminate intergranular stress, reaching a good annealing surface.
When different steel materials are placed together, a potential difference is generated, which leads to galvanic corrosion, especially when there is water accumulation, and the galvanic corrosion rate between the sanitary stainless steel pipe and the carbon steel pipe is accelerated.

Just as the battery works, the chemical energy is directly converted into electrical energy in a chemical battery because of the redox reaction inside the battery. In order to prevent electrochemical corrosion and carburization of stainless steel tubes, it is best to stack them together.

However, when carburizing occurs at the normal temperature when carbon steel is in contact with the stainless steel, carburization does not occur immediately. Spotted rust on the sanitary stainless steel pipe will occur in a certain period.



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Iris Liang
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