Pipes

A steel pipe is steel with a hollow section and its length is much greater than its diameter or circumference. According to the cross-sectional shape, it is divided into round, square, rectangular, and special-shaped steel pipes; according to the material, it is divided into carbon structural steel pipes, low-alloy structural steel pipes, alloy steel pipes, […]

OD, ID, NPS Explained and Pipe Schedule Table

The dimensions of steel pipe directly determine their compatibility, flow performance, pressure-bearing capacity, and connection standards. Understanding steel pipe dimensions can be confusing—OD, ID, NPS, DN, pipe size dimension chart… If you have ever felt confused about material selection, this article will clarify all the key concepts for you. Before Everything: Understanding Diameter To fully […]

What Is Pipe Schedule? Guide to Pipe Wall Thickness

Pipe schedule is a pipe wall thickness grade, a numbering system used to represent a series of steel pipe wall thicknesses, formulated by the ASME/ANSI standard. The pipe schedule does not indicate a material or pressure grade, but a wall thickness series number. Definition of Pipe Schedule Pipe schedule = Wall Thickness Number The higher […]

Ultimate Guide to Seamless and Welded Steel Pipes

Welded Pipe Manufacturing Process Welded steel pipes are produced by forming a steel coil or plate into a cylindrical shape through hot or cold rolling and welding. Welding and forming methods vary depending on the product. After welding, pipes undergo internal and external seam trimming and smoothing, end conditioning (plain, grooved, or threaded), and anti-corrosion […]

Flow, Pressure and Valve Selection Guide

Relationship between Pressure and Flow Rate “Pressure” of a pipe refers to the internal pressure that the pipe can withstand or actually bears during use. This pressure results from forces exerted on the pipe wall by either flowing or stationary liquid or gas in the pipelines. It can be understood as: the pressure exerted by the internal […]

Appearances and Benefits of All Kinds of Pipe Ends

  Threaded End The threaded end is the end of pipes that have male threads or female threads manufactured by mechanical processing, enabling pipes to be directly connected with pipe fittings through the threaded end. The threaded end is gradually tightened to achieve a seal and lock on the connection. The thread connection is fast […]