Heat Exchanger Tubes: Use Seamless Pipes Or Welded Pipes

The main function of heat exchanger tube is to exchange heat between two media. They are made of various materials, including carbon steel, low alloy steel, stainless steel, etc. They have high thermal conductivity and good isothermal properties. Their types can be selected according to specific needs. Heat exchanger tubes are available in both seamless pipe and welded steel pipe. The type of pipe to be selected depends on different application scenarios.

Classification of heat exchanger tubes

Heat exchanger tubes can be divided into seamless tubes and welded tubes according to the manufacturing process. Among them, seamless tubes are made by cold drawing or hot rolling, so they have uniform wall thickness, good toughness and high strength, and are suitable for working environments under special conditions such as high pressure and high temperature.

Welded pipes are made by welding, with a larger wall thickness and a certain amount of oxides inside the pipe, so they are not as tough and strong as seamless pipes.

What kind of pipes are used in heat exchangers?

Heat exchangers are a type of equipment widely used in industrial production. Their main function is to transfer heat from one fluid to another through heat conduction inside the pipe to achieve heat exchange. In heat exchangers, there are both seamless pipes and welded pipes depending on the specific working environment and technical requirements.

Generally speaking, for heat exchangers with low wall thickness requirements under medium and low pressure conditions, welded pipes will be used as heat exchanger tubes. For heat exchangers with special requirements such as high pressure and high temperature, seamless pipes will be selected as heat exchanger tubes to ensure their safety and reliability during application.

Characteristics and application scope of different types of pipes

1. Seamless pipe: Seamless pipe has uniform wall thickness, good toughness and high strength. It is made of perforated round steel. There is no weld on the surface. It has good sealing and is suitable for working environments under special conditions such as high pressure and high temperature. It is often used in the manufacture of high-pressure boilers, steam turbines and other equipment in the industrial field.

2. Welded pipe: The manufacturing process of welded pipe is relatively simple, its wall thickness is large, and there is a certain amount of oxide inside the pipe, so it is not as tough and strong as seamless pipe. It is suitable for heat exchangers with low wall thickness requirements under some medium and low pressure conditions.

Summary

In general, different types of pipes need to be selected according to specific working conditions and technical requirements. For some occasions with medium and low pressure requirements, welded pipes are a good choice; for equipment manufacturing under high pressure and high temperature conditions, it is necessary to choose seamless pipes with uniform wall thickness, good toughness and high strength.