Seamless Steel Pipe | Seamless Welded Pipe | Seamless Steel Pipe ManufacturerSeamless steel pipes are pipes where the weld is parallel to the longitudinal axis of the pipe. They are commonly categorized into metric electric welding pipes, thin-walled welding pipes, transformer cooling oil pipes, and so on. The production process for seamless steel pipes is simple, with high efficiency, low cost, and rapid development.Seamless Steel Pipe: Generally used for conveying low-pressure fluids. Made from steel grades Q195, Q215A, Q235A, and Q235B carbon steel. Also available in焊接-friendly 0317 standard type 6012 and soft steel 755, for joint manufacturing. The pipes must undergo hydrostatic, bending, and flattening tests, with certain surface quality requirements. Standard delivery lengths are typically 4-10 meters, with a common requirement for fixed-length (or multiple-length) deliveries. Pipe specifications are indicated by nominal diameter (in millimeters or inches). Nominal diameter differs from actual, with welded pipes available in two types: standard wall thickness and heavy wall thickness. Pipe ends are available with or without threads.