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The difference and application field between carbon steel pipe and seamless steel pipe

The difference and application field between carbon steel pipe and seamless steel pipe

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Carbon steel pipe and seamless steel pipe are two common kinds of pipes in the steel industry, and there are some differences in the manufacturing process and performance characteristics.

1. Define and manufacture process

Carbon steel pipe is a steel pipe with carbon element as the main alloying element, and the carbon content is high, usually between 0.06% and 2.11%. Carbon steel tubes can be produced by two main manufacturing processes, the seamless process and the welding process.

1.1 Manufacturing process of seamless steel pipe

Seamless steel pipes are made by blank heating, perforation, hot rolling or cold drawing processes. The manufacturing process of seamless steel pipe is relatively complex, but because there is no welded joint on the inner and outer surfaces of seamless steel pipe, it has high strength and corrosion resistance.

1.2 Manufacturing process of welded steel pipe

Welded steel pipes are manufactured by bending steel plates into tubes and then welding them. The manufacturing process of welded steel pipe is relatively simple, but due to the existence of welded joints, the strength and corrosion resistance of the weld part are low.

2. Comparison of performance characteristics

2.1 Performance characteristics of carbon steel pipe

Carbon steel pipe has high strength, toughness and corrosion resistance. Carbon steel pipes have good weldability and can be connected by a variety of welding methods. In addition, carbon steel pipe prices are relatively low, widely used in many fields.

2.2 Performance characteristics of seamless steel pipe

The inner and outer surfaces of seamless steel pipes are smooth, without welded joints, and have high strength and corrosion resistance. Seamless steel pipes perform well in high temperature and high pressure environments, so they are widely used in oil, gas, chemical and other industries.

3. Application field

3.1 Application field of carbon steel pipe

Carbon steel pipes are widely used in construction, bridge, machinery manufacturing, automobile manufacturing and other industries. For example, carbon steel pipes can be used to make water pipes, oil pipes, auto parts, etc.

3.2 Application field of seamless steel pipe

Because of its high strength and corrosion resistance, seamless steel pipe is widely used in oil, natural gas, chemical industry, electric power and other industries. Seamless steel pipe plays an important role in oil Wells, pipeline transportation, petrochemical equipment and so on.

There are some differences between carbon steel pipe and seamless steel pipe in manufacturing process and performance characteristics. Carbon steel pipe is suitable for occasions where the general requirements are not too high, the price is relatively low, and it is widely used in construction, bridge, machinery manufacturing and other industries. The seamless steel pipe has high strength and corrosion resistance, suitable for high temperature and high pressure environment, and is widely used in oil, natural gas, chemical industry and other industries.

Both carbon steel pipes and seamless steel pipes play an important role in different fields and have contributed to the development of all walks of life. With the continuous progress of science and technology and the development of the industry, the manufacturing process and performance characteristics of carbon steel pipes and seamless steel pipes are also constantly improved and improved to meet the changing needs.


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Zhishang Steel has always been a pioneer in custom steel and special supplies, and has been recognized for its efforts in enhancing work efficiency and product quality. In addition to ISO9001:2015 certification, we also adhere to strict quality policies and proprietary procedures. If you have any questions, please contact us to provide the best type of product solution for your pre-painted, coil coating metal process, we will closely support after-sales service to ensure that your subsequent problems can be solved in a timely manner, if you have any questions, please send email to info@zhishangsteel.com, we look forward to serving you.

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Zhishang Steel Co., Ltd


Zhishang Steel, specializing in domestic steel products trade, warehousing, processing and other services. The team has four service teams: Shandong Zhishang Steel Co., LTD., Shandong Zhiyiheng Trading Co., LTD., Tai 'an Zhishang Economic and Trade Co., LTD., Shandong Zhishang Steel Structure Co., LTD. Mainly engaged in steel coil, coated, stee···

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