Underground oil extraction tools work in wells thousands of meters deep, with harsh environments and complex stress conditions. Under normal circumstances, the extraction tools must not only withstand tensile stress, and torsional bending stress but also withstand strong friction and impact. At the

The following 8 aspects are the main inspection items of seamless steel pipes, precision steel pipes, precision drawn steel pipes, precision rolled steel pipes, and welded steel pipes: 1. Appearance size inspection: surface quality, wall thickness, outer diameter inspection, inner diameter inspec

As a high-quality pipe, American standard steel pipe L245N has important application value in the steel industry. 1. Characteristics of American standard steel pipe L245N American standard steel pipe L245N belongs to a pipe in the API5L standard and has the following main characteristics: - Uni

Stainless steel pipe fittings are a type of pipe fittings. They are made of stainless steel materials, so they are called stainless steel pipe fittings. They include stainless steel elbows, stainless steel tees, stainless steel crosses, stainless steel reducers, stainless steel pipe caps, etc. Accor

Quality defects of rolling pipes and their prevention The rolling process is the main process to determine the wall thickness of seamless steel pipes. Its function is to reduce the wall of perforated rough pipes. The main defects are uneven wall thickness of rough pipes, surface cracks, pits, abras

Spiral steel pipe is mainly used in tap water engineering, the petrochemical industry, the chemical industry, the power industry, agricultural irrigation, and urban construction. Spiral steel pipe is one of the 20 key products developed in my country. For liquid transportation: water supply and d

With the development of the construction, engineering, and manufacturing industries, galvanized steel pipes have been widely used as an important building material. It has the advantages of corrosion resistance, wear resistance, beauty, and practicality, and plays an important role in protecting ste

Plastic coated seamless steel pipe is a steel pipe with excellent anti-corrosion performance. Based on steel pipe production, a layer of plastic is coated on the surface of the steel pipe through a special process. This special plastic coating process gives the steel pipe excellent anti-corrosion ab

First, introduction Steel pipe is one of the important products in the steel industry and is widely used in construction, engineering, oil, natural gas, and other fields. As a large-diameter steel pipe, a steel pipe with a diameter of 1200 plays an important role in certain specific projects. Se

Seamless steel pipes are an important steel product widely used in various fields. With its high-quality characteristics, it plays an important role in the fields of oil, natural gas, chemical industry, electricity, aerospace, etc. First, the characteristics of seamless steel pipes 1. High stren

1. Metallographic method Metallography is one of the main methods for distinguishing welded steel pipes from seamless steel pipes. High-frequency resistance welded steel pipes do not have welding materials added, so the weld seam in the welded steel pipe is very narrow. If the method of rough grind

To solve the problem of excessive misalignment in the alignment of spiral steel pipe nozzles, the following preventive measures should be taken in quality management control: 1. Use the internal alignment device as much as possible. 2. Perform engineering measurement and trimming during assembly.

With the continuous development of my country's economy, the country has vigorously developed the energy industry. Long-distance API oil and gas pipelines are an important way to ensure energy security. In the process of anti-corrosion construction of oil (gas) pipelines, the surface treatment of hi

Causes and preventive measures for the formation of single one-sided undercuts: In the production process of submerged arc welded steel pipes, especially in high-speed welding, undercuts have become one of the main defects in the production process of spiral submerged arc welded steel pipes. The und

At present, reinforced 3PE anti-corrosion steel pipes are widely used. However, due to the low wall thickness accuracy of reinforced 3PE anti-corrosion steel pipes, uneven thickness occurs, which will have a great impact on the performance of reinforced 3PE anti-corrosion steel pipes, thereby affect

There are two main differences between oil casing and oil drill pipe: 1. Different uses; 2. Different materials. Oil casing is a steel pipe used to support the well wall of oil and gas wells to ensure the normal operation of the entire oil well during the drilling process and after completion. Ea

1. Appearance inspection The appearance inspection of three oil five cloth anti-corrosion steel pipes is a simple and intuitive detection method. When conducting an appearance inspection, it is necessary to carefully observe whether there are uneven surfaces on the pipe body and whether there are o

A106 seamless steel pipe, as one of the most-watched products in the steel industry, contains many mysteries worth exploring. Let us take a deep look at the meaning of this keyword and unveil its mystery. 1. Characteristics of A106 seamless steel pipe: - High strength: A106 seamless steel pipe h