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Steel Pipe vs. Steel Tube: What's the Difference?

Steel Pipe vs. Steel Tube: What's the Difference?

BlogDate: 31-07-2023 by: Nhu Quynh

People often think steel pipes and steel tubes are the same because they are both steel pipes. However, each type will have its definition and characteristics. Join MRS Steel to learn the difference between pipe and tube in the following article.

1. The general concept between steel pipes and steel tubes

People often use pipe and tube instead of each other because they think that both are the same. However, there are significant differences between steel pipes and steel tubes.

Steel pipes are cylindrical objects with a large diameter and wall thickness and are often used to circulate gases and substances (petroleum, chemicals, waste, water,...) Pipes are usually closed to prevent fluids and gases from escaping.

Steel tubes are also similar in shape to pipes, but their diameter and thickness are usually smaller than pipes. Steel tubes are commonly used for pressure equipment, mechanical applications, and instrumentation systems (heat exchanger tubes, radiator tubes, boiler tubes,...)

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2. Differences between steel pipes and steel tubes

2.1 Differs in size, thickness, and pipe diameter

The first difference between steel pipes and steel tubes is the difference in size, thickness, and pipe diameter.

Differences in steel pipe designation size: Steel pipes are measured and described based on their outer diameter (OD) along with the thickness of the pipe wall (WT) to determine the fluid capacity of the pipe. As for steel tubes, they are measured and described based on their inner diameter (ID), and the thickness of the wall is usually measured in millimeters or inches.

Differences in pipe nominal thickness: Steel pipes are assigned thicknesses based on pipe parameter levels, while tubes are assigned thicknesses based on inches, millimeters, and B.W.G.

Differs in pipe nominal diameter: Steel tubes with an outer and nominal diameter are always equal. There will be different outer and nominal diameters for pipes of different sizes.

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2.2 Differs in the application of pipes

The second difference between steel pipe and steel tube is in the application of each type of steel pipe. Pipes are usually large in diameter, are often used to transport gas or fluids (oil and gas pipes, water pipes, etc.), and often use insulation to prevent heat from escaping. Tubes are often used to exchange heat with the outside, allowing heat to escape: boiler tubes, condensers, and heat exchangers.

2.3 Differs in price

Steel pipes and steel tubes also have a difference in cost. The tube costs more than the pipe for the two types of tubes. In addition, the tube also has a small size and high flexibility, so it is easy to be flexible to install into systems, so the cost is often higher.

3. How to choose quality steel pipes and steel tubes

Imitation, imitation, and poor-quality steel are common concerns for importers today. So how can you buy high-quality steel when the market has too many poor-quality products?
 

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To buy quality steel pipe and steel tube products, importers need to carefully understand the quality and origin of the products. Many importers do not know the market well, so they have come and bought cheap products, many times lower than the market price. Most of the cheap products are poor-quality products of unknown origin, such as stamps,... The use of poor-quality products significantly affects construction.

Top 6 reputable steel pipe manufacturers in Vietnam in 2023

Recognizing the quality and origin of products is not easy, especially for foreign importers. This requires foreign importers to find reputable steel buyers on the market. MRS Steel currently distributes and trades quality steel pipe and steel tubes from famous brands such as Hoa Phat, Nam Kim, Hoa Sen, SMC,... All the products we supply are of unmistakable quality and origin. If you want to know more information about steel pipe, please contact us here.