API 5L Seamless Steel Pipe Steel Tube

PRODUCT DESCRIPTION

API Seamless Steel Tube is a kind of long steel with hollow section and no seams around. The Steel Pipe has a hollow section, which is widely used as a pipeline to transport fluids. For example, steel pipes used to transport oil, natural gas, gas and water are used to make annular parts, which can improve the utilization of materials, simplify the manufacturing process, and save materials and processing hours. For example, rolling bearing rings, jack sleeves, etc., steel pipes have been widely used to manufacture.
api Seamless Steel Pipe manufacturing process:
Hot rolling (extrusion of Seamless Steel Tubes): round tube blank → heating → piercing → three roll cross rolling, continuous rolling or extrusion → pipe stripping → sizing (or reducing) → cooling → blank tube → straightening → hydrostatic test (or flaw detection) → marking → warehousing.
Cold drawn (rolled) seamless steel pipe: round pipe blank → heating → piercing → heading → annealing → pickling → oiling (copper plating) → multi pass cold drawn (cold rolled) → blank pipe → heat treatment → straightening → hydrostatic test (flaw detection) → marking → warehousing.