304 stainless steel precision steel tube is very useful, especially in the electrical industry, where it can be found everywhere. Stainless steel can gain a foothold in the electrical industry with its two advantages safety, hygiene, and corrosion resistance. Here are some representative applications.

First of all, the parts that come into direct contact with food. 304 stainless steel precision steel tube is equivalent to a “faucet” as a water outlet. Direct contact with drinking water is very particular about the safety and hygiene of the material. 304 stainless steel is recognized by the state as food-grade stainless steel. The precipitation of heavy metals such as arsenic, cadmium, lead, chromium, and nickel meets strict standards. For details, please refer to “GB 4806.9-2016 National Food Safety Standard”.

The pipe fittings use a polishing process to remove the excess height of the inner pipe wall weld. The pipe wall can be polished into a mirror effect, which improves the rust resistance and scaling resistance of the stainless steel pipe and removes grease to achieve the cleanliness required by the food grade, so it can be used with confidence. The ductility of 304 stainless steel precision steel tube is δ5 (%) ≥ 40, hardness ≤ 201HBW, ≤ 92HRB, ≤ 210HV; it is not easy to break when bending, and can be bent into any angle, with excellent processing performance, greatly reducing the scrap rate, and fundamentally saving costs.

In addition, it is used as a heat exchange tube in gas water heaters, which has been in a high temperature and humid environment for a long time, and has strict requirements on corrosion resistance and high temperature resistance. 304 stainless steel can withstand high temperatures of 800 degrees Celsius, and its thermal conductivity (W·m-1·K-1): (100℃) 16.3, (500℃) 21.5, is the best choice for gas water heater heat exchange tubes. 304 stainless steel precision steel tubes are treated with bright solution annealing, which heats the steel tube at high temperature and quickly cools it down, dissolves the carbides in the organization, improves the corrosion resistance of the tube, and extends the service life of the heat exchange tube. Precision polishing is used to improve the smoothness of the inner tube wall, making the tube wall resistant to corrosion and scaling, and improving heat transfer performance; stainless steel is easy to cut and can be made into thin-walled tubes. In addition to improving heat transfer performance, it can also save costs, and performance and economy coexist.

The above is the application of 304 stainless steel tubes in the electrical industry as direct contact with food and as heat exchange tubes. After a detailed analysis of material properties and processing performance, it is learned that 304 stainless steel precision steel tubes can also be used in this way.