Will Seamless Steel Pipes Change At Low Temperatures?

1. Low temperature deformation characteristics

Ordinary seamless steel pipes will have low-temperature deformation characteristics in low-temperature environments. Low temperature makes steel prone to concentrated stress and local deformation, thus affecting the service life of steel pipes. In order to solve this problem, high-strength special steel can be used to improve the low-temperature resistance of the steel pipe.

2. Risk of brittle fracture

In low temperature environments, the toughness and strength of ordinary seamless steel pipes will decrease, and the risk of brittle fracture will also increase. Therefore, when selecting seamless steel pipes, its risk of brittle fracture needs to be fully considered. Generally speaking, the lower the ambient temperature of steel pipes, the greater the risk of brittle fracture. To reduce the risk of brittle fracture, special steels with high toughness and low-temperature strength can be selected.

3. Choose seamless steel pipes suitable for low temperature environments

The pressure and stress intensity experienced by steel pipes under low temperature conditions are different from the requirements at normal temperatures, so it is necessary to choose seamless steel pipes suitable for use in low temperature environments. Generally speaking, when the ambient temperature is lower than -20°C, it is recommended to choose seamless steel pipes made of low-temperature special steel. When selecting, you also need to consider the pressure, stress and other specific parameters of the use environment, and refer to relevant standards and specifications.

4. Precautions

When using ordinary seamless steel pipes in low temperature environments, you need to pay attention to the following matters:

1. The temperature should be within the specified range and shall not exceed the tolerance range of the seamless steel pipe.

2. It is necessary to regularly check whether the surface of seamless steel pipes is free of damage and deformation.

3. During installation and use, it is necessary to pay attention to the protective measures of the steel pipe to ensure its safety and reliability.

In short, the tolerance range of ordinary seamless steel pipes in low-temperature environments depends on the specific circumstances. Seamless steel pipes suitable for low-temperature environments should be selected, and attention should be paid to their low-temperature deformation characteristics and brittle fracture risks. During use, it is also necessary to pay attention to relevant safety and protection measures to ensure the service life and safety of steel pipes.