Oxygen lance pipe, also known as welding pipe, is used forSteel plateOrCoil SteelWelded steel pipes, typically cut to 6 meters in length after being curled and shaped.Welded Steel PipeSimple production process, high production efficiency, a variety of specifications, low equipment investment, but generally lower strength thanSeamless Steel Pipe。

Since the 1930s, withCoil SteelThe rapid development of continuous rolling production and advancements in welding and inspection technologies have led to continuously improved weld quality. The variety and specifications of welded steel pipes are increasingly diverse, and they are replacing traditional pipes in an ever-growing number of fields.Seamless steel tubeWelded steel pipes are categorized by the type of weld.Seamless Welded PipeAndSpiral Welded Pipe.Categorized by production method: Process Classification - Arc Welded Pipe, Resistance Welded Pipe, (High Frequency, Low Frequency) Gas Welded Pipe, Furnace Welded Pipe.

Smaller diameter welded pipes are typically made using straight seam welding, while larger diameter pipes often feature spiral welding; they are categorized into round welded pipes and non-standard (square, rectangular, etc.) welded pipes based on the shape of the pipe ends; and into mining fluid conveyance, etc., based on material and application.Steel PipeGalvanized welded steel pipes for low-pressure fluid conveyance, belt conveyor roller electric welding pipes, etc. Sorted by outer diameter and wall thickness, as per the specifications and dimensions table in the current national standards.