What Are The Advantages Of Using Hollow Section Over Solid Section in Construction?

1. Steel with a hollow section whose length is much greater than the diameter or circumference.

2. According to the cross-sectional shape, the hollow section is divided into round, square, rectangular, and special-shaped steel pipes; according to the material, it is divided into carbon structural steel pipes, low-alloy structural steel pipes, alloy steel pipes, and composite steel pipes; Steel pipes for thermal equipment, petrochemical industry, machinery manufacturing, geological drilling, high-pressure equipment, etc.; according to the production process, it is divided into seamless steel pipes and welded steel pipes, of which seamless steel pipes are divided into hot-rolled and cold-rolled ( There are two types of welded steel pipes, which are divided into straight seam welded steel pipes and spiral seam welded steel pipes.

3. Hollow section is not only used for conveying fluids and powdered solids, exchanging heat energy, and manufacturing mechanical parts and containers but also as economical steel.

4. The use of hollow sections to make building structure grids, pillars, and mechanical supports can reduce weight, save 20 to 40% of metal, and can realize factory mechanized construction.

5. The use of hollow sections to manufacture highway bridges can not only save steel and simplify construction but also greatly reduce the area of the protective coating, saving investment and maintenance costs.