Welcome to attent the Tube Fair From 14 to 16 June 2023 and Wish we could meet there, do remember that our booth number is W4E08
  • ERW Steel Pipe-Differences Between ERW and LSAW Steel Pipe

    ERW Steel Pipe-Differences Between ERW and LSAW Steel Pipe

    Straight seam welded steel pipes are divided into high frequency resistance welding and submerged arc welding according to the welding process. Straight seam submerged arc welding is referred to as LSAW, and longitudinal high frequency resistance welding is referred to as ERW.Compared with submerged arc welding, high frequency electric resistance welded steel pipes (ERW steel pipes) do not add any welding materials during the welding process in the ERW process, and the weld formation does not undergo a thermal melting state, but the weld metal undergoes a recrystallization process. Therefore, the formed weld seam is completely consistent with the chemical composition of the base metal. After the steel pipe is welded, it is annealed to produce the cold working internal stress and welding internal stress. Therefore, the comprehensive mechanical properties of the ERW steel pipe are better.
  • Stainless steel-Electric Resistance Welded (ERW) Pipe-Welded (ERW) Pipe

    Stainless steel-Electric Resistance Welded (ERW) Pipe-Welded (ERW) Pipe

    Steel pipes come in many forms and sizes. Seamless pipes are a non-welded option produced from hollowed-out steel billets. When it comes to welded steel pipes, there are three options: ERW, LSAW and SSAW.ERW pipes are made from electric resistance welded steel plates. LSAW pipes are made from longitudinally submerged arc welded steel plates. SSAW pipes are made from spiral submerged arc welded steel plates.Steel pipes are typically used in the oil and gas industry for exploration and extraction (upstream), the transmission of fluids like oil, gas and slurries (midstream) and oil refinement into derivative products (downstream). They are also used for agricultural irrigation, urban construction and more.Let’s take a closer look at each type of pipe, comparing their differences and how to make an order with the right description.
  • LSAW Welded Steel Pipe: Features and Manufacturing Processes-lsaw steel pipe

    LSAW Welded Steel Pipe: Features and Manufacturing Processes-lsaw steel pipe

    LSAW (Longitudinal double submerge arc welding) carbon steel pipe is a type of SAW pipe made of steel plates that were hot rolled by JCOE or UOE forming technology. JCOE technology represents the shaping and forming processes involved during manufacturing as well as the inner and outer welding and cold expansion carried out after welding.When compared to UOE LSAW steel pipes, LSAW pipe manufacturers in China can produce more sizes as thus: OD 406 mm – 1620 mm, thickness 6.35 mm – 60 mm, pipe length 2 m – 18 m with the LSAW pipe having superiority.Octal offers LSAW steel pipe with high quality and competitive prices.
  • Welded Steel Pipe

    Welded Steel Pipe

    Welded steel pipe, also known as welded pipe, is a steel pipe made of steel coils or strip steel after crimping and welding, generally with a length of 6 or 12 meters. The production process of welded steel pipe is simple, the production efficiency is high, there are many varieties and welded steel pipe specifications, and the investment in equipment is small, but the general strength is lower than that of seamless steel pipe.

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