Difference between pipes and tubes pdf

For pipes, internal diameter ID roughly corresponds to the nominal pipe size. For tubes, the outer diameter OD roughly corresponds to the tube size. Sometimes when you are working on your bachelor degree online this is the kind of topic you will come across. It is good to be prepared. The pipe internal diameter is not exactly equal to nominal pipe size but deviates from the nominal diameter, depending on the schedule. Similarly, the tube outer diameter is not exactly equal to the tube size, depending on tube wall thickness.

The reason is that tubes need more precise and complicated manufacturing as compared to pipes. The specified diameter of the pipes is the nominal diameter which is actually different from the actual diameter found upon measuring.

And, on the other hand, there is not much difference between the specified diameter and the measured diameter in the case of tubes. Specifications of tubes have tighter tolerances as compared to that of the pipes. On the other hand, you can order a pipe by specifying its Nominal Diameter and Schedule Number. You can use tubes in structural applications such as medical devices etc. And, the pipes are used especially for the transportation of fluids liquid or gas from one place to the other.

Pipe vs Tube Strength If you compare the strength of the pipe and the tube. January 4, Comment: Please enter your comment! Recent Posts. As breakthroughs are made, this technology January 4, 0. Share on whatsapp. Share on telegram. Share on linkedin. Share on facebook. Share on twitter. Share on print. Share on email. Table of Contents. The NPS does not match the true inside diameter, it is a rough indication The most important dimensions for a steel tube are the outside diameter OD and the wall thickness WT.

These parameters are expressed in inches or millimeters and express the true dimensional value of the hollow section. Two pipes of different NPS and same schedule have different wall thicknesses in inches or millimeters. The wall thickness of a steel tube is expressed in inches or millimeters. Tube strength Tolerances are set, but rather loose. Strength is not the major concern.

Steel tubes are produced to very strict tolerances. Tubulars undergo several dimensional quality checks, such as straightness, roundness, wall thickness, surface, during the manufacturing process. Mechanical strength is a major concern for tubes. Tubes manufacturing is more lengthy and laborious 7 Delivery time Can be short Generally longer 8 Market price Relatively lower price per ton than steel tubes Higher due to lower mills productivity per hour, and due to the stricter requirements in terms of tolerances and inspections 9 Materials A wide range of materials is available Tubing is available in carbon steel, low alloy, stainless steel, and nickel-alloys; steel tubes for mechanical applications are mostly of carbon steel 10 End Connections The most common are beveled and plain ends Threaded and grooved ends are available for quicker connections on site.

Pipe vs. Leave a Reply Cancel reply Your email address will not be published. Continue Reading. In general, cylindrical.

However, different other shapes like square, rectangular, etc. They are more prevalent in medical area, construction, structural or load bearing. Normally small-bore tube is used in process piping. For structural use, tubes are available in custom sizes. Available as rigid as well as flexible depending on the application.

Rigid tubes are normally used in structural applications whereas copper and brass tubes can be flexible.