News

  • Why 304, and 316 stainless steel pipe fittings are magnetic

    Why 304, and 316 stainless steel pipe fittings are magnetic

    In real life, most people think that stainless steel pipe fitting is non-magnetic, and use magnets to identify stainless steel, which is very unscientific. People often think that magnets absorb stainless steel, and verify its quality and authenticity. If it does not attract and has no magnetism,...
    Read more
  • What are the common classifications of stainless steel pipes

    What are the common classifications of stainless steel pipes

    1. Production method: Stainless steel welded pipes are divided into two categories: seamless pipes and welded pipes according to the production method. Seamless steel pipes can be divided into hot-rolled pipes, cold-rolled pipes, cold-drawn pipes, extruded pipes, etc. It is the secondary processi...
    Read more
  • Classification and anticorrosion of API casing

    Classification and anticorrosion of API casing

    Oil casing can be roughly divided into 1. The surface casing is according to different usage methods. Second, the middle casing. 3. Production casing. 4. Drilling casing. The surface casing is mainly to suspend and support the subsequent layers of the casing through the casing head installed on t...
    Read more
  • Surface treatment method of anti-corrosion spiral steel pipes

    Surface treatment method of anti-corrosion spiral steel pipes

    Regarding the surface treatment methods of anti-corrosion spiral steel pipes, there are currently many methods that can be operated 1. Use solvents and emulsions to clean the surface of the anti-corrosion spiral steel tube, which can remove the organic matter on the surface of the spiral steel tu...
    Read more
  • How to Improve the Stability of Spiral Seam Submerged Arc Welded Steel Pipe

    How to Improve the Stability of Spiral Seam Submerged Arc Welded Steel Pipe

    What are the methods to improve the stability of spiral seam submerged arc welded steel pipe? 1) Dimensions of steel wire, rebar, in-diameter steel pipe, wire rope, etc. can be expected in a well-ventilated storage shed, provided the underlying thatch is provided. 2) For some enterprises and smal...
    Read more
  • Surface defects of seamless steel pipe and their causes

    Surface defects of seamless steel pipe and their causes

    The causes of surface defects of seamless steel pipes are intricate. There are hundreds of influencing factors listed, and sometimes there are dozens of factors for the same defect, and the occurrence of defects has a great relationship with the steel type. This is why the production of seamless ...
    Read more