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中文简体Stainless Steel Electropolished Tube (EP Tube) is widely used in many industries due to its excellent surface finish, corrosion resistance and cleanability. This article will introduce in detail the technical characteristics, application fields and significant advantages of EP Tube.
Technical features
The manufacturing process of EP Tube mainly includes the production of seamless bright annealed tubes or tubes, and surface treatment through electropolishing process. Electropolishing is an electrochemical process that dissolves tiny imperfections and roughness on the surface by immersing the tubing in a charged electrolyte solution to create a smooth, uniform surface. This process not only removes contaminants from the pipe surface but also enhances its corrosion resistance.
The inner surface of EP Tube can usually achieve a surface roughness of 10Ra (0.25µm) or smoother after electropolishing. This high degree of finish allows EP Tube to significantly reduce friction and resistance when transporting liquids or gases, improve flow performance, and help maintain high product purity.
Application areas
Due to its unique properties, EP Tube is widely used in multiple industries, including but not limited to:
Biopharmaceuticals: In the field of biopharmaceuticals, EP Tube is used for the transportation and storage of high-purity pharmaceuticals to ensure that they are free from contamination.
Specialty Gases: In industries that require high purity gases, such as the semiconductor and electronics industries, EP Tube can maintain gas purity.
Electronic clean room: In electronic clean rooms, EP Tube is used to build and maintain a high-cleanliness environment to meet the production needs of precision electronic products.
Solar photovoltaic: In solar photovoltaic systems, EP Tube is used to transport and store media to ensure stable operation of the system.
Chemical system: In the chemical industry, EP Tube is used for the transportation of various chemical media due to its corrosion resistance and high cleanliness.
Significant advantages
EP Tube has many significant advantages over traditional stainless steel pipes:
Better corrosion resistance: The electropolishing treatment not only removes surface contaminants, but also enhances the corrosion resistance of the pipe and extends its service life.
Improved Chromium/Iron Ratio: The chromium/iron ratio of EP Tube is usually greater than 1.5, which helps improve the corrosion resistance of the pipe.
Improved Carbon Layer Thickness: EP Tube’s carbon layer thickness is typically less than 10 Angstroms (Å), further improving its cleanliness and corrosion resistance.
Enhanced CrO/FeO ratio: The increase in this ratio helps maintain the stability of the pipe surface and prevent oxidation and corrosion.
Improved product purity: The smooth surface of EP Tube reduces the risk of contamination of the medium during transportation and improves product purity.
Enhanced Cleanability: Due to its high finish, EP Tube is easier to clean and maintain, reducing maintenance costs.
