structural pipe VS fluid pipe

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publisher: Tianjin Yuantai Derun Steel Pipe Group

Issue Time: Feb 26,2024

Summary

Structural pipes and fluid pipes are two major types of steel pipe applications. In practical project applications, we need to know the differences between them, can they be universal?

Overview:

Structural pipes and fluid pipes are two major types of steel pipe applications. In practical project applications, we need to know the differences between them, can they be universal? What are their respective advantages? This article will introduce one by one.

What is structural pipe?

Structural pipes refer to pipes used in building structures and mechanical structures that have support and load-bearing functions.That is what people often refer to as general structural steel pipes.

What is fluid pipe?

Fluid pipes refer to pipelines used for fluid transportation applications such as oil and natural gas.That is what people often refer to as steel pipes for fluid transportation.

Structural Pipe VS Fluid Pipe

There are some differences between structural pipes and fluid pipes, and in specific application scenarios, the two cannot be interchangeable. We have summarized their differences in the following table.

Difference	Structural Pipe	Fluid Pipe
Shape	Square,rectangular,round，There are various styles, such as elbows, tees, crosses, reducers, and flanges	Most of them are circular
Performance	Require excellent load-bearing performance	Require good sealing performance
Application	Construction industry, mechanical manufacturing industry，eg: Columns，Sign Poles，Structural Supports，Pilings，Bollards，Roadway Billboard Signs，Tower Construction，Caissons，Road Bore Casings，Dock Piles，Dredge Pipe，Slurry Lines，Bumper Posts	Petrochemical industry, water supply and drainage and sewage industry,eg:oil,gas,water,
Benefit	1. The pressure bearing capacity should be good and there should be no fracture, otherwise, once an accident occurs, it will affect the construction of the entire project. 2. Easy to build, just follow the general standards to quickly complete the construction. 3. Durable and long-lasting, it can be used for a long time after completion of the project without damage or wear.	1. Good airtightness, no leakage is allowed during transportation, otherwise gas leakage will result in unimaginable consequences. 2. Prevent corrosion, as many transported objects are corrosive, and if corrosion occurs, the entire project will be affected. The smoothness 3.requirements of the pipe are very strict and must be met before it can be made into a fluid pipe.
Manufacturing raw materials	Use more metal materials such as carbon steel, stainless steel, alloy steel, copper, aluminum, etc., and use less concrete, cement, etc	Ceramics, glass, fiberglass, various metals, concrete and plastics, rubber, etc
Health Standard	Usually, only compliance with relevant green building material standards is required.	If it is used for conveying food and water, it must comply with relevant food grade standards.
Type	ERW,SMLS,SSAW,LSAW	Most are seamless pipe, few part of fluid pipe are welded pipe

Can the two types of pipelines be interchangeable?

Usually, structural steel pipes and fluid pipes are not interchangeable. However, for some less stringent application scenarios, some structural pipes and fluid pipes can be interchangeable. This situation requires consideration of the usage scenario of the pipeline.

Summary:

Structural pipes require pressure and load-bearing capacity, while fluid pipes require sealing. You need to choose different types of steel pipes according to different application scenarios. If you have any questions about structural pipes and fluid pipes, please write to us