You are here: Home » News
  • 2024-02-26

    1. Location: The storage area should be well-ventilated, dry and protected from the elements. It should also be easily accessible for inspecting, handling, and loading/unloading the pipes.2. Stacking: Pipes should be stacked in a way that prevents deformation or damage. They should be supported even
  • 2024-02-26

    1. Coatings: Applying protective coatings on the carbon steel pipe's surface can help prevent corrosion. Coatings like epoxy, polyethylene, or fusion bond epoxy (FBE) provide a barrier against moisture and corrosive substances.2. Cathodic Protection: This method involves using a sacrificial anode or
  • 2024-02-26

    International standards:According to international standards, the allowable deviation value of seamless pipe wall thickness should comply with the following regulations:1. For seamless steel pipes with wall thickness > or = 20mm, the allowable deviation value should be within plus or minus 10%;2. Fo
  • 2024-02-26

    Seamless tubes, like seamless pipes, are produced without a joint and are known for their high-quality performance in various applications. The ovality of a seamless tube refers to the degree of circularity deviation from a perfect circle. It is an important parameter as it affects the tube's streng
  • 2024-02-26

    Spiral welded steel pipes are produced by spiral submerged arc welding or double-sided submerged arc welding process. The workshop hoisting specifications for spiral welded steel pipes mainly include the following aspects:1. Lifting equipment: The workshop should be equipped with suitable lifting eq
  • 2024-02-26

    1. Cutting of large-diameter plastic-coated steel pipes for water transportation. Metal saws should be used to cut steel pipes. Large-diameter steel pipes should be cut with saws. When cutting with entanglement, the rotation speed should not exceed 800r/min; the cross-section of the steel pipe to be
  • 2024-02-23

    Hot-dip galvanized seamless pipes are generally coated with a layer of zinc on low-carbon steel, and the thickness of the zinc layer is generally 20um. The melting point of zinc is 419°C and the boiling point is about 908°C. During the welding process, zinc melts into a liquid.1. Use indirect fusion
  • 2024-02-22

    1. Definition of straight seam steel pipe weldsStraight seam steel pipe weld refers to the joint part formed by joining two steel plates together through a welding process. The quality of the weld is directly related to the strength, sealing, and service life of the steel pipe.2. Welding process and
  • 2024-02-21

    3PE anti-corrosion steel pipe base materials include seamless steel pipes, spiral steel pipes, and straight seam steel pipes. The three-layer polyethylene (3PE) anti-corrosion coating has been widely used in the oil pipeline industry due to its good corrosion resistance, water vapor permeability res
  • 2024-02-20

    Welded steel pipes offer a variety of advantages that make them suitable for a wide range of applications in industries such as construction, oil and gas, water supply, and more. Here are some key advantages:1. Strength and Durability: Welded steel pipes are known for their high strength and durabil
  • Total 81 pages  Go to Page
  • Go




  Hunan Gaoxing Steel Development Zone, No.1888 Purui South Rd, Wangcheng District,Changsha, Hunan, China

Tel: 0086-0731-88739521

Copyright  2020 Threeway Steel Co.,Ltd. All Rights Reserved