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Steel-aluminum composite finned tube

Steel-aluminum composite finned tube
Steel-aluminum composite finned tube

The steel-aluminum composite finned tube is composed of an outer tube and fins. The base pipe is usually a carbon steel pipe, a stainless steel pipe or a copper pipe. The aluminum tube is placed outside. The aluminum tube is then extruded into fins using a special rolling mill, and a thin layer is formed on the outside of the base tube to tightly wrap the tubes together. The main advantage of the steel-aluminum composite finned tube is that the base pipe is a steel pipe, and its mechanical properties, temperature resistance, pressure resistance and corrosion resistance are good. The outer layer material is aluminum, light weight, low price, easy processing, good air corrosion resistance, beautiful appearance, high fin strength, scale can be cleaned by high pressure, and the base pipe is generally not based on the base pipe. Corrosion and oxidation increase the thermal resistance of the fins and the base tube, and the heat transfer performance is slightly better than that of the tube fin tube. Therefore, its application is more and more extensive, especially in the fields of refining, chemical, power generation and so on.