What Is The Heat-resistant Temperature of Carbon Steel Pipe?

As a widely used metal pipe in the industrial field, the heat resistance of carbon steel pipe is directly related to the safety and service life of the equipment. Under normal circumstances, the heat-resistant temperature range of carbon steel pipe is between 200 and 450 degrees Celsius, but this indicator is not fixed, but is affected by a combination of factors. This article will deeply explore the factors affecting the heat-resistant temperature of carbon steel pipe from three aspects: material composition, manufacturing process and use environment, and provide scientific guidance for related applications.

Basic range of heat-resistant temperature of carbon steel pipe

Generally speaking, the heat-resistant temperature of carbon steel pipe is between 200 and 450 degrees Celsius:

1. Mild steel pipe

Due to the low carbon content, its heat-resistant temperature is usually around 200 to 300 degrees Celsius, which is suitable for occasions where the temperature requirements are not extreme, such as general hydraulic tube systems and pipeline connections in some mechanical manufacturing fields.

2. High carbon steel pipe

High carbon content can improve heat resistance, and the temperature resistance can reach 400 to 450 degrees Celsius, but it will also make the material more brittle under certain conditions. Therefore, it is necessary to balance its heat resistance and toughness in applications under high temperature environments.

Factors affecting the heat resistance temperature of carbon steel pipes

1. The effect of carbon content on heat resistance temperature

Carbon is one of the main alloying elements in steel materials and has a significant effect on the heat resistance of steel pipes. The heat resistance temperature of mild steel pipes is relatively low, generally around 200 to 300 degrees Celsius. Due to the strengthening effect of carbon elements, high carbon steel pipes have relatively better heat resistance and can withstand high temperatures of up to 400 to 450 degrees Celsius. However, excessive carbon content may also increase the brittleness of steel pipes, so comprehensive considerations are needed in practical applications.

2. The relationship between manufacturing process and heat resistance

In addition to carbon content, the manufacturing process of carbon steel pipes will also affect their heat resistance. For example, the internal structure of steel pipes optimized by heat treatment process is more uniform and the grains are refined, thus improving the heat resistance of the material. In addition, some special manufacturing processes, such as quenching and tempering, can further improve the stability and service life of carbon steel pipes in high temperature environments.

3. Test of heat resistance by use environment

The environmental conditions faced by carbon steel pipes in actual use are also an important factor affecting their heat resistance. Carbon steel pipes used in high temperature, high pressure or corrosive environments need to have higher heat resistance and corrosion resistance. For example, in the application of drill pipe or OCTG pipe, carbon steel pipes need to withstand extreme temperature and pressure conditions. Therefore, when selecting carbon steel pipes, their use environment must be fully considered to ensure that the steel pipes can work stably and for a long time under harsh conditions.

Material selection suggestions

1. Clarify the working temperature range

According to the actual working temperature, select a suitable carbon content range to meet the heat resistance requirements and avoid safety due to excessive brittleness of the material.

2. Focus on process optimization

Prioritize the use of products that have undergone advanced heat treatment and special process treatment, which not only improves the heat resistance, but also enhances the comprehensive stability of the pipe in complex environments.

3. Comprehensively evaluate the use environment

In the design and material selection process, factors such as temperature, pressure and chemical media should be fully considered to ensure that the pipe can maintain a good condition for a long time in actual application.

Summary

In summary, the heat resistance temperature of carbon steel pipes is a complex issue involving multiple factors. When selecting and using carbon steel pipes, factors such as its carbon content, manufacturing process and use environment should be comprehensively considered to ensure that the heat resistance of the steel pipe can meet actual needs.

Read more: Roughness of carbon steel pipe