News

  • Common defects and correction methods of stainless steel sheet re-rolling

    Common defects and correction methods of stainless steel sheet re-rolling

    1 Characteristic of rolling deformation of stainless steel sheets The material of the magneto shield is 1Crl8Ni9, the material thickness is 0.2~0.3mm, and it is a modified stainless steel sheet. 1Crl8Ni9 belongs to austenitic stainless steel, which has the characteristics of t...
    Read more
  • Packaging and storage of oil casing

    Packaging and storage of oil casing

    According to the American Petroleum Institute standard APISPEC5CT 1988 1st edition, casing steel grades are H-40, J-55, K-55, N-80, C-75, L-80, C-90, C-95, P- There are 10 types of 110 and Q-125. The casing should be supplied with threads and couplings, or in any of the follow...
    Read more
  • Application scope and adaptability conditions of plastic-coated steel pipes

    Application scope and adaptability conditions of plastic-coated steel pipes

    Application scope of plastic-coated steel pipe: (1) Coal mine system: underground mine water supply and drainage, fire sprinkler, underground shotcrete, positive and negative pressure ventilation gas drainage, and other pipe networks. (2) Heating network water delivery system:...
    Read more
  • What is the stress condition of spiral steel pipe during the extrusion process

    What is the stress condition of spiral steel pipe during the extrusion process

    (1) During the extrusion process, the temperature of the lining of the spiral steel pipe continues to increase as the extrusion process proceeds. At the end of the extrusion, the temperature in the area of the inner wall of the lining close to the extrusion die is relatively h...
    Read more
  • Things to note when installing stainless steel pipe fittings

    Things to note when installing stainless steel pipe fittings

    The use of flat joints for stainless steel pipe fittings requires high pipe quality, as well as the outer diameter ovality, wall thickness, and physical properties of the rubber ring of cast iron drainage pipes. Since the flat joints have poor watertight performance conditions...
    Read more
  • The difference between fixed length and indefinite length of Q235A spiral steel pipe

    The difference between fixed length and indefinite length of Q235A spiral steel pipe

    The length of steel pipes for pipelines, but for the convenience of users, when the steel pipes are sold at any time, the Q235A spiral steel pipes are produced with variable length pipes within the standards, but when the actual order is made, the standard length steel pipes a...
    Read more
  • Precautions for using stainless steel flanges

    Precautions for using stainless steel flanges

    Although stainless steel flanges have unique advantages in terms of material, no matter how good they are, they still need to be used with caution, so that they can be used for a longer period. So what should you know about the specific use of stainless steel flanges? 1. To pr...
    Read more
  • The scope of application of epoxy resin coated steel pipes

    The scope of application of epoxy resin coated steel pipes

    Epoxy resin-coated steel pipe coating is a thermosetting plastic that combines the common advantages of steel and plastic. Its scope of application includes 1. Fire sprinkler system and domestic water supply and drainage; 2. Gas drainage, mud transportation, and ventilation sy...
    Read more
  • Which is better, spiral welded steel pipe or welded steel pipe

    Which is better, spiral welded steel pipe or welded steel pipe

    1. The materials are the same but the uses are different, so there is no question of who is better. 2. Spiral welded steel pipe refers to a steel pipe with seams on the surface, which is made by bending and deforming steel strips or steel plates into circular, square, and othe...
    Read more