Seamless pipes and tubes are types of pipes and tubes that are manufactured without any welding seam. They are made by piercing a solid billet of steel or other materials to form a hollow cylindrical shape. The absence of a welding seam provides several advantages, including higher strength, better corrosion resistance, and improved pressure resistance.

The European Commission has launched an anti-dumping duty (AD) investigation into imports of certain seamless pipes and tubes from China. This action follows a complaint by the European Steel Tube Association (ESTA) on April 2, 2024, which claimed that increased imports are harming the EU industry.

The investigation of dumping and injury will cover the period from April 1, 2023, to March 31, 2024. The product subject to this investigation is certain seamless pipes and tubes of iron or steel, including precision tubes of circular cross-section of an external diameter not exceeding 406.4 mm with a Carbon Equivalent Value (CEV) not exceeding 0,86 according to the International Institute of Welding (IIW) formula and chemical analysis.

The products under investigation fall under TARIC codes 7304191020, 7304193020, 7304230020, 7304291020, 7304293020, 7304312030, 7304318030, 7304395030, 7304398230, 7304398320, 7304518930, 7304598230 and 7304598320.

seamless pipe

Seamless pipes and tubes are commonly used in industries such as oil and gas, petrochemical, power generation, and automotive. They are suitable for applications where high-pressure, high-temperature, or corrosive environments are involved.

The manufacturing process of seamless pipes and tubes involves several steps, including billet preparation, piercing, elongation, and finishing. The seamless nature of these pipes and tubes allows for a smooth and continuous flow of fluids or gases, making them ideal for transporting liquids and gases in various industries.

Seamless pipes and tubes come in a wide range of sizes, diameters, and thicknesses to meet specific application requirements. They can be made from different materials, such as carbon steel, stainless steel, alloy steel, and non-ferrous metals.

Overall, seamless pipes and tubes are known for their superior strength, durability, and reliability, making them a popular choice in various industries that require high-performance piping systems.

Seamless carbon steel pipe is a long strip of steel with a hollow cross-section and no seams around it. It is made of high-quality carbon steel and has been refined to have good mechanical properties and welding properties.

The material of seamless carbon steel pipe is excellent. The material of Q345B has high yield strength and tensile strength, which can meet various high strength and high durability requirements.

At the same time, seamless carbon steel pipes have undergone special anti-corrosion treatment and have good corrosion resistance, and can maintain their good performance for a long time in corrosive media such as acids, alkalis, and salts.

Seamless carbon steel pipes have excellent welding performance and can be connected using various welding methods, such as argon arc welding, CO2 gas shielded welding, etc.

Its application fields are wide, including petroleum, chemical industry, electric power, construction and other fields.

In the petroleum industry, seamless carbon steel pipes are used to transport oil, gas and other media;

in the chemical industry, they are used to manufacture various pressure vessels, pipeline systems, etc.;

in the electric power field, they are used to manufacture boilers, chimneys, etc.;

in the construction field, Used for water supply, drainage, heating and other systems of buildings.

What are the characteristics of the material of seamless carbon steel pipe?

As an important engineering material, seamless pipe or seamless carbon steel pipes are widely used in many fields. Its material properties are excellent and provides reliable support for various application scenarios.

1. Excellent mechanical properties

Seamless steel pipes or seamless carbon steel tube have excellent mechanical properties, mainly due to the high-quality carbon steel materials they use. Seamless carbon steel pipes exhibit good elasticity and plasticity when subjected to external forces such as pressure, bending, and impact, and can meet various complex engineering needs.

2. High tensile strength

Seamless pipe or seamless carbon steel pipes have high tensile strength and can withstand large pulling forces. This high-strength feature enables seamless carbon steel pipes to maintain stable performance under harsh environments such as high pressure and high temperature, ensuring project safety.

3. Good corrosion resistance

Seamless carbon steel pipes have undergone special anti-corrosion treatment and have better corrosion resistance. In corrosive media such as acids, alkalis, and salts, seamless carbon steel pipes can maintain their good performance for a long time and extend their service life. This characteristic makes seamless carbon steel pipes have broad application prospects in chemical industry, petroleum and other fields.

4. Excellent welding performance

Seamless carbon steel pipes have excellent welding performance and can be connected using a variety of welding methods. This makes the installation and maintenance of seamless carbon steel pipes more convenient and improves work efficiency. At the same time, the excellent welding performance also ensures the quality and strength of the weld and improves the reliability of the overall project.

5. Wide range of applications

The excellent properties of seamless carbon steel pipes make them widely used in many fields. Whether it is in the fields of petroleum, chemical industry, electric power or construction, seamless carbon steel pipes can give full play to their unique advantages and meet the needs of various complex projects.

6. Various types of materials

Seamless carbon steel pipes are made of various materials, including steels with different carbon contents and different alloying elements. This diversity allows seamless carbon steel pipes to adapt to various working environments and engineering needs, meeting the individual needs of customers.

7. High processing precision

Seamless carbon steel pipes use advanced production technology and equipment during the manufacturing process to ensure the processing accuracy of the product. This makes the installation and connection of seamless carbon steel pipes more convenient and improves the quality of the project.

8. Reasonable price

Although seamless carbon steel pipes have excellent performance and various advantages, their prices are relatively reasonable, allowing customers to control costs while enjoying high-quality products. This price advantage makes seamless carbon steel pipes highly competitive in the market.