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The comparison of application scope between LSAW pipe and SSAW pipe
Steel pipe can be seen everywhere in our daily life. It is widely used in heating, water supplying, oil and gas transmission and other industrial fields. According to the pipe forming technology, steel pipes can be roughly divided into the following four categories: SMLS pipe, HFW pipe, LSAW pipe...Read more -
The main test equipment and application of spiral steel pipe
Industrial TV internal inspection equipment: inspect the appearance quality of internal welding seam. Magnetic particle flaw detector: inspect the near surface defects of large-diameter steel pipe. Ultrasonic automatic continuous flaw detector: inspect the transverse and longitudinal defects of t...Read more -
The advantages and disadvantages of spiral welded steel pipe
The advantages of spiral welded pipe: (1) The different diameters of spiral steel pipes can be produced by the same width coil, especially large-diameter steel pipes can be produced by narrow steel coil. (2) Under the same pressure condition, the stress of spiral welding seam is smaller than that...Read more -
Application and development direction of spiral steel pipe
The spiral steel pipe is mainly used in tap water project, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction. It is one of the 20 key products developed in China. Spiral steel pipe can be used in different industries. It is produced...Read more -
Several common anti-corrosion processes of spiral steel pipe
Anti corrosion spiral steel pipe generally refers to usespecial technology for anti-corrosion treatment of ordinary spiral steel pipe, so that the spiral steel pipe has a certain anti-corrosion capacity. Usually, it is used for waterproof, antirust, acid-base resistance and oxidation resistance. ...Read more -
Causes of Air holes in spiral steel pipes
Spiral submerged arc welded steel pipe sometimes encounters some situations in the production process, such as air holes. When there are air holes in the welding seam, it will affect the quality of the pipeline, make the pipeline leak and cause heavy losses. When the steel pipe is used, it will a...Read more -
Action of chemical composition in steel
1. Carbon (C) .Carbon is the most important chemical element affecting the cold plastic deformation of steel. The higher the carbon content, the higher strength of steel, and the lower of cold plasticity. It has been proved that for every 0.1% increase in carbon content, the yield strength increa...Read more -
Requirements for the package of large diameter spiral steel pipe
The transportation of large diameter spiral steel pipe is a difficult problem in delivery. In order to prevent the damage to the steel pipe during transportation, it is necessary to pack the steel pipe. 1. If the buyer has special requirements for the packing materials and packing methods of spir...Read more