Models And Standards of Carbon Seamless Steel Pipes

Carbon seamless steel pipe is a long strip of steel with a hollow cross-section and no seams around them. Due to its unique manufacturing process and excellent performance, it is widely used in various fields such as petroleum, chemical industry, electricity, boilers, ships, etc. The model and parameters of seamless steel pipes are key factors affecting their use effect. Therefore, in the process of purchase and use, these factors must be deeply understood and analyzed.

Models of carbon seamless steel pipes

The models of carbon seamless steel pipes are mainly classified according to factors such as their manufacturing process, purpose, and size specifications. Common models include 10#, 20#, 35#, 45#, 16Mn, etc. These models represent different chemical compositions and mechanical properties, thus meeting the use needs of different fields. Specifically:

1. 10#, 20# seamless steel pipes

Mainly used for conveying fluids, such as water and oil. Its manufacturing process is simple and the cost is low, but the strength and corrosion resistance are relatively low. It is also used in some low-pressure hydraulic piping systems or temporary fluid delivery pipelines.

2. 35#, 45# seamless steel pipe

It has high strength and hardness, and is suitable for occasions with high pressure and load, such as oil drilling, bridge construction, etc.

3. 16Mn seamless steel pipe

It is a low-alloy high-strength structural steel pipe with good comprehensive mechanical properties and welding properties. It is widely used in shipbuilding, automobile manufacturing, construction engineering and other fields.

Parameters of carbon seamless steel pipe

The parameters of carbon seamless steel pipe mainly include outer diameter, wall thickness, length and related technical indicators. These parameters directly affect the performance and price of steel pipe. The following are some key parameter descriptions:

1. Outer diameter and wall thickness

The outer diameter and wall thickness are important factors in determining the pressure bearing capacity of steel pipe. Generally speaking, the larger the outer diameter and the thicker the wall thickness, the stronger the pressure bearing capacity of steel pipe. But at the same time, it will also increase the weight and cost of steel pipe. In the application of boiler tubes and heat exchanger tubes, the selection of outer diameter and wall thickness is particularly critical according to the internal pressure and heat transfer requirements. Therefore, it is necessary to weigh according to actual needs when purchasing.  

2. Length

The length of seamless steel pipe is usually customized according to customer needs. Common lengths are 6 meters, 9 meters, 12 meters, etc. In practical applications, cutting or welding can also be performed as needed.

3. Technical indicators

Including tensile strength, yield strength, elongation, impact toughness, etc. These indicators reflect the mechanical properties of the steel pipe and its ability to resist external forces. When purchasing, attention should be paid to whether these indicators meet the requirements of national or industry standards.

Classification of carbon seamless steel pipe implementation standards

The implementation standards of carbon seamless steel pipes are mainly divided into international standards, national standards and industry standards. Among them, international standards such as ASTM A106 and A53 are globally applicable; industry standards are formulated according to specific application areas, such as petroleum, chemical industry, electricity, etc.

1. ASTM A106

This is a seamless carbon steel pipe for high temperature use, with good high temperature oxidation resistance and high endurance strength. It is mainly suitable for high temperature and high pressure oil and natural gas pipelines.

2. ASTM A53

This is a general seamless carbon steel pipe, divided into two grades, A and B. Grade A is suitable for low pressure fluid transportation, and grade B is suitable for higher pressure fluid transportation.

3. GB/T 8163

This is a seamless steel pipe for fluid transportation, which has good corrosion resistance and high mechanical properties. It is mainly suitable for conveying fluids such as water, oil, and gas.

Purchase recommendations and application precautions

When purchasing carbon seamless steel pipes, it is recommended to consider the following aspects:

1. Clarify the use requirements and occasions, and choose the appropriate model and specifications.

2. Pay attention to product quality and technical indicators to ensure that they meet the requirements of relevant standards.

3. Compare prices and services, and choose reputable suppliers for cooperation. During use, attention should also be paid to regular inspection and maintenance to ensure the safe operation and service life of the steel pipe.

Summary

In summary, the model, parameters and implementation standard grade of carbon seamless steel pipes are the key factors affecting their use effect. By deeply understanding and analyzing these factors, we can better guide our purchase and application work and provide strong support for the development of various fields.

Read more: Seamless Carbon Steel Pipe