What? Will stainless steel heat exchange tubes rust? !
By: mxgy,
Stainless steel heat exchange tubes are made of stainless steel and are widely used in heat exchangers. We all know that stainless steel pipes have good corrosion resistance, but if they are exposed to some specific elements during use, they may also rust.
First of all, let’s talk about the rusting process of stainless steel. There is a thin and strong oxide film on the surface of stainless steel, which is used to prevent oxygen atoms from permeating and oxidizing, and play a role in corrosion resistance. And if this layer of film continues to be damaged due to some factors, the oxygen atoms in the air or liquid will continue to penetrate, or the iron atoms in the metal will continue to precipitate, forming loose iron oxide, and the metal surface will be slowly corroded.
So let’s talk about some factors that can damage the protective film of the heat exchange tube and cause rust on the stainless steel heat exchange tube.
1. Metal elements
Dust containing other metal elements or foreign metal particle attachments accumulate on the surface of the heat exchange tube. Under humid air, the condensed water between the attachment and the stainless steel will connect the two into a miniature battery, which will trigger an electrochemical reaction. destroy the protective film. This phenomenon is called galvanic corrosion.
2. Organic Juice
Organic juices such as vegetables, noodle soup, and phlegm adhere to the surface of heat exchange tubes, and form organic acids in the presence of water and oxygen, which erodes the surface of heat exchange tubes for a long time.
3. Acid, alkali, salt
Acid, alkali, and salt substances adhered to the surface of the heat exchange tube will also cause localized corrosion of the heat exchange tube.
4. Pollution gas
Heat exchange tubes exist in polluted air, such as air containing a large amount of sulfide, carbon oxides, and oxidative inflammation. Condensed water will form sulfuric acid, nitric acid, and acetic acid spots, causing chemical corrosion.
These factors are actually relatively common in daily life, so more attention should be paid when storing and using stainless steel heat exchange tubes to prolong the service life of heat exchange tubes.
What? Will stainless steel heat exchange tubes rust? !
By: mxgy,
Stainless steel heat exchange tubes are made of stainless steel and are widely used in heat exchangers. We all know that stainless steel pipes have good corrosion resistance, but if they are exposed to some specific elements during use, they may also rust.
First of all, let’s talk about the rusting process of stainless steel. There is a thin and strong oxide film on the surface of stainless steel, which is used to prevent oxygen atoms from permeating and oxidizing, and play a role in corrosion resistance. And if this layer of film continues to be damaged due to some factors, the oxygen atoms in the air or liquid will continue to penetrate, or the iron atoms in the metal will continue to precipitate, forming loose iron oxide, and the metal surface will be slowly corroded.
So let’s talk about some factors that can damage the protective film of the heat exchange tube and cause rust on the stainless steel heat exchange tube.
1. Metal elements
Dust containing other metal elements or foreign metal particle attachments accumulate on the surface of the heat exchange tube. Under humid air, the condensed water between the attachment and the stainless steel will connect the two into a miniature battery, which will trigger an electrochemical reaction. destroy the protective film. This phenomenon is called galvanic corrosion.
2. Organic Juice
Organic juices such as vegetables, noodle soup, and phlegm adhere to the surface of heat exchange tubes, and form organic acids in the presence of water and oxygen, which erodes the surface of heat exchange tubes for a long time.
3. Acid, alkali, salt
Acid, alkali, and salt substances adhered to the surface of the heat exchange tube will also cause localized corrosion of the heat exchange tube.
4. Pollution gas
Heat exchange tubes exist in polluted air, such as air containing a large amount of sulfide, carbon oxides, and oxidative inflammation. Condensed water will form sulfuric acid, nitric acid, and acetic acid spots, causing chemical corrosion.
These factors are actually relatively common in daily life, so more attention should be paid when storing and using stainless steel heat exchange tubes to prolong the service life of heat exchange tubes.
