Application temperature and material selection guide for steel pipes

First, the importance of application temperature
When selecting steel pipe materials, it is crucial to understand their application temperature range. Different materials have different heat resistance, and using them beyond their design temperature range will cause deformation, breakage, or other safety hazards.

Second, the application temperature range of 5 mm thick steel pipes
1. General low-temperature applications: -20°C to 20°C
5 mm thick steel pipes have good performance in general low-temperature environments. For example, in applications such as low-temperature storage, refrigeration equipment, and low-temperature process pipelines, the temperature of steel pipes is often between -20°C and 20°C. In this temperature range, common steels such as carbon steel and low alloy steel can meet the requirements.
2. Medium temperature applications: 20°C to 300°C
5 mm thick steel pipes have a wide range of applications in medium-temperature environments. For example, in industries such as industrial equipment, petrochemicals, and electric power, steel pipes often need to withstand higher temperatures. At this time, it is more appropriate to use materials such as alloy steel and stainless steel with better heat resistance.
3. High temperature application: above 300°C
When the temperature exceeds 300°C, 5mm thick steel pipes will face more severe challenges. At this time, the strength and heat resistance of conventional materials such as carbon steel and low alloy steel are no longer sufficient to meet the needs. In high-temperature application scenarios, special materials such as heat-resistant alloy steel and high-temperature alloy steel are recommended to ensure the safe operation of steel pipes.

Third, a 5mm thick steel pipe material selection guide
1. Carbon steel: Carbon steel is a common steel with good weldability and mechanical properties. In general low-temperature and medium-temperature applications, carbon steel is an economical and practical choice. However, in high-temperature environments, carbon steel has poor strength and heat resistance and is not suitable for long-term exposure to high-temperature environments.
2. Stainless steel: Stainless steel has good corrosion resistance and high-temperature resistance, and performs well in medium-temperature applications. Its main components are iron, chromium, and nickel, which make stainless steel have certain heat resistance and are suitable for environments with higher requirements. However, for high-temperature environments that exceed its heat resistance limit, the performance of stainless steel will be affected.
3. Heat-resistant alloy steel: Heat-resistant alloy steel is a special material with excellent high-temperature resistance. Due to the addition of a variety of alloying elements, such as chromium, molybdenum, tungsten, etc., heat-resistant alloy steel can maintain high strength and stability in high-temperature environments. It is wise to choose heat-resistant alloy steel in equipment and processes that need to withstand high temperatures.

Fourth, summary
When choosing a 5 mm thick steel pipe, the application temperature is an important consideration. Depending on the application temperature, the selection of steel pipes also needs to be focused. Carbon steel is suitable for general low and medium-temperature applications, stainless steel is suitable for medium-temperature environments with higher requirements, and heat-resistant alloy steel is the preferred material in high-temperature environments. The correct selection of steel pipe materials can not only ensure the normal operation of the equipment but also improve production efficiency and safety.