What's the Difference Between Tube and Pipe

Tube and pipe seem to be the same; in fact, there is a difference between them. The following China Shenghai aluminum extrusion manufacturer introduces the difference between tube and pipe.
Shenghai aluminum tube tubing


1. Shape
Tube has square, rectangular and round. Pipes are round.

2.Rigidity
Aluminum tubes are usually rigid, but there are also flexible tubes made of copper and brass. The pipe is always rigid and resistant to bending.

3. Classification
Tube according to the outer diameter and wall thickness. Pipe according to the wall thickness code schedule and nominal diameter (European standard) = national pipe size (American standard).

rectangular aluminum tube

4. Use environment
Tubes use small pipe diameters, and 10-inch tubes are rare. Pipes use in large pipe diameters. 10-inch pipes are very common. For example, pipes range from half an inch to several feet.

5. The requirements are different
Tube pays attention to the accuracy of the outer diameter because it involves pressure. Pipe pays attention to wall thickness because pipe mainly transports fluid and requires high internal pressure capability.

aluminum pipe piping
6. The wall thickness grade is different from the wall thickness
The wall thickness of the tube is increased by one level, and the wall thickness increased by 1mm or 2mm, and the increase is unchanged. The schedule represents the wall thickness of the pipe, and the numerical relationship of each level is different. For example, the wall thickness of Sch.20 with 1/8 "(NPS)=6mm(DN) is about 1.245mm, while the wall thickness of Sch.30 is about 1.448mm. However, Sch.40 is 1.727mm, and the increase is inconsistent because Sch is actually (design pressure/design temperature allowable stress) x 1000.

7. Different connection methods
Tube can be connected quickly and easily. It can join by flaring, brazing, or coupling. The connection of Pipe is complex. It can be welded or threaded.
Shenghai alu tube pipe

Through the above 7 distinguishing methods, we probably know the difference between tube and pipe. Do you want to know about aluminum tube/tubing and aluminum pipe/piping?

China Shenghai aluminum extrusion manufacturer produces aluminum profiles. Including aluminum tube and aluminum pipe. Aluminum tube/pipe is formed by hot extrusion of the mold. One or more closed through holes with uniform wall thickness and cross-section, straight or rolled shape. It is widely used in automobiles, ships, aerospace, subway, electrical appliances, agriculture and construction. Our alu tube and alu pipe are mainly used in the construction industry (interior decoration, window frames, staircase handrails, etc.). Extrusion aluminum tube/pipe is a widely used type of aluminum profile. Aluminum tubes are square, rectangular and round. Aluminum tube/pipe can be customized according to customer needs.












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