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Forming method and connection type of large-diameter steel pipe
At present, the main production process of large-diameter steel pipes in my country is hot-rolled large-diameter steel pipes and thermally expanded-diameter steel pipes. The largest size of thermally expanded seamless steel pipes is 325 mm-1220 mm and the thickness is 120mm. T...Read more -
How to perform daily maintenance on straight seam steel pipe
Long-distance oil and gas pipelines are an important way of energy security. During the anticorrosion construction process of oil and gas pipelines, the surface treatment of straight seam steel pipes is the key factor determining the service life of pipeline anticorrosion. It ...Read more -
What are the heat treatments of stainless steel welded pipes
During the production process of stainless steel welded pipe, intermediate heat treatment and finished heat treatment can be carried out. Because a bright surface without oxidation can be obtained, the traditional pickling process is canceled. The use of this heat treatment pr...Read more -
Comparison of advantages and disadvantages of spiral steel pipe and straight seam steel pipe
The weld seam of the spiral steel pipe is longer than that of the straight seam steel pipe. If the pipe length is L, the weld seam length is L/cos(θ). However, most of the defects of steel pipes are concentrated in the weld seam and the heat-affected zone. The long weld seam m...Read more -
What is the suitable temperature for welding straight seam steel pipe
Welding, also known as welding, is a manufacturing process and technology that can join metal or other thermoplastic composite materials such as plastics by applying heat, high temperature, or pressure. There are three welding methods: 1. Welding. The workpiece is heated to fo...Read more -
Is there any difference between HFW steel pipe and ERW steel pipe
The difference between ERW steel pipe (straight seam electric resistance welded steel pipe) and HFW steel pipe (high frequency welded steel pipe) is mainly the principle. As the name implies, resistance welding is a method in which pressure is applied through electrodes after ...Read more -
Several common anti-corrosion processes for spiral steel pipe anticorrosion
Anti-corrosion spiral steel pipe plays an important and different role in people’s daily life. Anti-corrosion spiral steel pipe generally refers to the use of special technology to treat ordinary spiral steel pipe with anti-corrosion treatment, so that the spiral steel p...Read more -
Classification and application range of welded steel pipe
Welded pipe, also known as welded steel pipe, is a steel pipe made of steel plate or strip steel after crimping and welding. Welded steel pipe has a simple production process, high production efficiency, many varieties and specifications, and less equipment investment, but its...Read more -
Quality identification of spiral steel pipe
As the demand for spiral steel pipes in the market increases, the requirements for spiral steel pipes are also getting higher and higher. However, due to different industries and use environments, the quality of spiral steel pipes is also different. What should be paid attenti...Read more