- Physical properties of steel pipe
Steel pipe is an alloy material composed of iron, carbon and other metal elements, and has excellent physical properties, such as hardness, strength and toughness. However, steel pipe also has certain limitations, including performance under extreme temperatures.
Second, the performance of steel pipe in extreme low temperature
Steel pipe in extreme low temperature will also occur some physical changes, such as the material will become brittle, easy to produce cracks and so on. In the cold winter in the northern region, some areas of the temperature may drop to below -30 ℃, the performance of steel pipe under such conditions need our special attention.
Third, how to avoid freezing and cracking of steel pipe in low-temperature environment
If you need to use steel pipe in low temperature environment, you need to take effective protective measures. Specifically, there are the following suggestions:
1, choose the appropriate steel pipe material. Some high alloy steel pipe or low temperature steel pipe has better performance in extreme low temperature environment.
2, insulation and heat preservation. The outdoor steel pipe needs to be insulated to prevent the surface of the steel pipe from directly contacting the external environment and reduce the temperature transfer rate.
3, avoid mechanical shock. At low temperatures, the toughness of the steel pipe is reduced, vulnerable to mechanical shock and damage. Therefore, in the handling or installation process requires special care to avoid mechanical shock.
4, the use of appropriate lubricants. At low temperatures, the coefficient of friction increases, the use of lubricants can reduce the friction and wear of the steel pipe, while maintaining the rigidity of the steel pipe unchanged.
In short, although the steel pipe in extreme low temperatures may also produce freeze cracking, but as long as the appropriate protective measures can be taken to avoid this situation. For the occasions that require the use of steel pipes in low-temperature environments, we should pay special attention to these issues in order to ensure the safe and stable operation of the equipment.