China's most trusted manufacturers of Stainless Steel Pipes & Tubes.

Industry News

  • Large-diameter seamless steel pipe related details

    Large-diameter seamless steel pipe related details

    Large-diameter seamless steel pipes can be divided into straight seam arc welded steel pipes and straight seam submerged arc welded steel pipes according to traditional processes. The production process of straight seam welded pipe is simple, low cost, rapid development, and high production effic...
    Read more
  • Production technology of large-diameter plastic-coated spiral steel pipe

    Production technology of large-diameter plastic-coated spiral steel pipe

    Large-diameter plastic-coated spiral steel pipe is a steel pipe with a polymer coating sprayed on the surface of the steel pipe. It has the characteristics of anti-corrosion, wear resistance, acid and alkali resistance, and anti-aging. Steel pipe surface treatment: First, the surface of the steel...
    Read more
  • How to identify counterfeit thick-walled seamless steel pipe

    How to identify counterfeit thick-walled seamless steel pipe

    1. Fake and inferior thick-walled seamless steel pipes are prone to folding. Folds are various fold lines formed on the surface of thick-walled seamless steel pipes. This defect often runs throughout the longitudinal direction of the product. The reason for folding is that shoddy manufacturers pu...
    Read more
  • Steel pipe processing methods

    Steel pipe processing methods

    Steel pipe processing and furnace installation: 1. Workpieces that are easily deformed during heat treatment should be heated on a special fixture. 2. The workpiece should be placed in the effective heating zone Warm-up: 1. For workpieces with complex shapes or sharp changes in cross-section and ...
    Read more
  • The difference between thin-walled spiral steel tubes and thick-walled spiral steel tubes

    The difference between thin-walled spiral steel tubes and thick-walled spiral steel tubes

    Thin-walled spiral steel pipe concept: The strip steel is fed into the welded pipe unit. After rolling with multiple rollers, the strip steel is gradually rolled up to form a circular tube blank with an opening gap. The reduction amount of the extrusion roller is adjusted to make the weld gap Con...
    Read more
  • Plastic-coated straight seam steel pipe details

    Plastic-coated straight seam steel pipe details

    Plastic-coated straight seam steel pipe is a high-performance, high-strength steel pipe product that is widely used in various construction, water conservancy, petroleum, chemical industry, electric power, and other fields. It has the advantages of anti-corrosion, waterproof, wear resistance, cor...
    Read more
  • Horizontal fixed argon electric joint welding process for stainless steel pipe butt joints

    Horizontal fixed argon electric joint welding process for stainless steel pipe butt joints

    1. Overview of the horizontal fixed argon electric joint welding process for stainless steel pipe butt joints. Stainless steel pipe butt joints have the characteristics of horizontally fixed tungsten arc welding base, electrode arc welding cover surface, and single-sided welding and double-sided ...
    Read more
  • The difference between hot-dip galvanized steel pipe and cold-dip galvanized steel pipe

    The difference between hot-dip galvanized steel pipe and cold-dip galvanized steel pipe

    Galvanized steel pipes are divided into cold-dip galvanized steel pipes and hot-dip galvanized steel pipes. The former has been banned, and the latter has been advocated by the country to be temporarily used. Hot-dip galvanized steel pipe. Hot-dip galvanizing pipe reacts molten metal with an iron...
    Read more
  • The difference between cold-drawn seamless steel pipe and hot-rolled seamless steel pipe

    The difference between cold-drawn seamless steel pipe and hot-rolled seamless steel pipe

    Cold drawn (rolled) seamless steel pipe: round tube blank → heating → perforation → heading → annealing → pickling → oiling (copper plating) multi-pass cold drawn (cold rolled) billet → heat treatment → straightening → Hydrostatic test (flaw detection) mark → Warehouse. Hot rolled (extruded seaml...
    Read more
  • What is the difference between hot-dip galvanized steel pipe and hot-dip galvanized steel pipe SC

    What is the difference between hot-dip galvanized steel pipe and hot-dip galvanized steel pipe SC

    1. Different representations: Hot-dip galvanized steel pipes generally refer to the standard nominal diameter of water pipes. The written symbol is DN. Hot-dip galvanized steel pipe SC means that the conductors are laid through steel pipes (low-pressure fluid welded steel pipes). SC is ordinary w...
    Read more
  • Large-diameter steel pipe forming methods and flaw detection qualification standard parameters

    Large-diameter steel pipe forming methods and flaw detection qualification standard parameters

    Large diameter steel pipe forming method: 1. Hot push expansion method: The push expansion equipment is simple, low-cost, easy to maintain, economical, and durable, and the product specifications are flexible. If you need to prepare large-diameter steel pipes and other similar products, you only ...
    Read more
  • What environments are large-diameter steel pipes suitable for

    What environments are large-diameter steel pipes suitable for

    1. Petrochemical: crude oil, refined oil, petrochemical raw materials, and finished product transportation pipes and oil field pipeline networks. 2. Natural gas: submarine and onshore long-distance pipelines; gas receiving station gas transmission pipelines; gas fields and urban natural gas pipel...
    Read more
123456 Next > >> Page 1 / 27