The seamless pipe is usually used at pressures above 0.6 MPa. This is because seamless pipes have high strength, high precision and corrosion resistance, and can withstand high pressure, high temperature and corrosion-resistant environments, ensuring the safe and stable operation of the pipeline system.

Usage pressure range of seamless pipes

Seamless pipes, as a high-strength, high-precision and corrosion-resistant pipe material, are widely used in various high-pressure occasions. Generally speaking, when the working pressure of the pipeline system exceeds 0.6 MPa, seamless pipes should be considered. This is because seamless pipes are not welded during the manufacturing process, so there are no welds, thus avoiding stress concentration and corrosion problems that may occur at the welds. This makes seamless pipes have better performance when subjected to high pressure, high temperature and corrosion-resistant environments.

Seamless pipe pressure grade classification

According to the pressure that seamless pipes can withstand, they can be divided into the following grades:

1. Low-pressure seamless pipes

The pressure resistance does not exceed 1.6 MPa, and it is mainly used to transport water, gas, oil and other non-corrosive liquids. Widely used in common construction, machinery, chemical, pharmaceutical and light industry industries, its pressure resistance value is usually between 0.6 and 1.6MPa.

2. Medium pressure seamless pipe

The pressure resistance does not exceed 10MPa, suitable for conveying high temperature and high pressure gas, liquid and aerosol, etc. It plays a key role in petrochemical, electric power, metallurgy and nuclear industries. Its pressure resistance value is usually between 1.6 and 10MPa.

3. High pressure seamless pipe

The pressure resistance exceeds 10MPa, mainly used for conveying oil, natural gas, chemicals and water, etc. It is increasingly widely used in marine engineering, geological exploration and petrochemical equipment. Its pressure resistance value is usually above 10MPa.

Factors to determine the pressure standard of seamless pipe

When determining the pressure standard of seamless pipe, the following key factors need to be considered:

1. Material

The material of seamless pipe directly affects its pressure bearing capacity. Generally speaking, seamless pipes made of high-strength materials can withstand greater pressure.

2. Wall thickness and diameter

Wall thickness and diameter are important factors in determining the pressure bearing capacity of seamless pipes. The thicker the wall and the smaller the diameter, the stronger the pressure bearing capacity of the seamless pipe.

3. Use environment

The use environment of the seamless pipe will also affect its pressure bearing capacity. For example, seamless pipes used in high temperature, high pressure or corrosive environments need to have higher pressure bearing capacity and corrosion resistance.

Summary

In summary, seamless pipes are ideal for high pressure occasions due to their high strength, high precision and corrosion resistance. When selecting seamless pipes, various factors should be considered comprehensively according to the actual situation to ensure that they meet the use requirements and ensure safety and reliability.