Pipe Fittings - Carbon Steel Various Sizes and Diameters | Structural Applications and Industry Compliance Standards

Pipe Fittings can also be used for structural applications. In layman's terms the appellations pipe and tube are almost interchangeable but in industry and engineering discipline the terms are uniquely defined. Depending on the applicable standard to which it is manufactured pipe is specified by the internal diameter (ID) and a wall thickness a nominal diameter and a wall thickness or an outside diameter (OD) and a wall thickness. Tube is most often defined by the outside diameter (OD) and a wall thickness but may be specified by any combination of dimensions (OD ID wall thickness). Pipe is generally manufactured to several long-standing and broadly applicable industrial standards. While similar standards exist for specific industry application tubing tube is often made to custom sizes and a broader range of diameters and tolerances. Many industrial and government standards exist for the production of pipe and tubing. The term "tube" is also commonly applied to non-cylindrical sections (i.e. square or rectangular tubing). In general the term "tube" is more widely used in the United States whereas a pipea is more common elsewhere in the world.