The China Hot dip Galvanized Square and Rectangular Steel Tube supplied by Shixinda Manufacturer has the greatest advantage in excellent structural mechanical performance and long-term rust prevention. The closed square and rectangular cross-section design enables the pipe to have more balanced bending, compression, and twisting resistance, with a much higher stability in force-bearing than ordinary round pipes and angle steel. It can meet various high-strength working conditions such as frame support, column load-bearing, and equipment rack fixation. The hollow lightweight structure ensures the bearing strength while effectively reducing the overall building weight, lowering the foundation construction load, and saving engineering material costs.
Hot dip Galvanized Square and Rectangular Steel Tube is divided into hot-dip galvanized square and rectangular steel tubes and electro-galvanized square and rectangular steel tubes. It is made from black-painted square and rectangular hollow steel pipes (cold-formed square / rectangular hollow steel pipes) as the base material. Through hot-dip galvanizing or electro-galvanizing processes, a uniform zinc layer is attached to the inner and outer surfaces of the pipe materials, forming hollow profiles.
Base material: Cold-formed welded square and rectangular section steel pipes;
Main galvanizing processes: Hot-dip galvanizing (main industrial process, strong anti-corrosion); Electro-galvanizing is only used for indoor light-load small items;
Form: Closed hollow quadrilateral profiles, the cross-section is square (square tube) or rectangular (rectangular tube), collectively referred to as square and rectangular tubes.
Structural load-bearing carrier: Replace angle steel and round pipes, used for frames, supports, and the main structure of steel structures, with better bending and torsion resistance performance than ordinary round pipes;
Long-term anti-corrosion component: The zinc layer isolates air and moisture, prevents rust and corrosion, suitable for outdoor humid, open-air, and mild acid-base environments;
Decorative + Structural Integrated Profile: Surface is silver-white and neat, no additional painting required, balancing structural strength and appearance beauty;
Universal lightweight pipe material: Hollow structure has light self-weight, reducing the overall load of the project, convenient for cutting, welding, and drilling processing;
Universal pipe material for all scenarios: Covers general structural components in fields such as construction, photovoltaics, municipal works, agricultural machinery, guardrails, and equipment racks.
The zinc coating thickness of hot-dip galvanizing is sufficient, and the pipe will not rust easily even after outdoor use for 8–15 years. Compared with painted black pipes, its service life is increased by more than 3 times.
The zinc coating has the self-sacrificing anti-corrosion property. Even if the pipe is slightly scratched, it will not rust quickly.
The finished product comes with a galvanized silver finish. It is clean and free of rust upon leaving the factory, eliminating the need for rust removal and primer application, significantly shortening the construction period.
The cross-section is flat and square, and the lines are regular after welding. The appearance of the finished products for guardrails, curtain walls, and landscape projects is of high quality.
The square/rectangular cross-section has a large moment of inertia. Under the same wall thickness, it has better load-bearing and anti-bending capabilities than round pipes.
The cold-bending forming size is regular, with good straightness, no distortion, and small assembly and connection gaps.
It can be freely cut, drilled, bent, welded, and tapped, meeting various on-site processing requirements.
The specifications are complete, with sufficient stock, and no need for custom mold production. Short delivery cycle.
There is no maintenance required in the future. There is no need to repeatedly paint and refurbish. The long-term operation cost is lower.
The hollow structure is lightweight, reducing transportation and lifting labor costs.
It is suitable for both indoor and outdoor use. It is resistant to rain, snow, salt, and moisture. It is suitable for coastal areas, factory areas, farmlands, and high-corrosion environments.
10×10, 15×15, 20×20, 25×25, 30×30, 40×40, 50×50, 60×60, 80×80, 100×100, 120×120, 150×150, 200×200 mm
20×40, 20×60, 30×50, 30×60, 40×60, 40×80, 50×100, 60×120, 80×120, 100×150, 100×200, 150×200 mm
1.0, 1.2, 1.5, 1.8, 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, 6.0, 8.0, 10.0. Thin walls are mainly used for decoration and guardrails; thick walls are used for steel structures, photovoltaic supports, and equipment load-bearing.
General 6 meters / piece; Customizable 3m, 4m, 9m, 12 meters non-standard lengths.
Hot-dip Galvanizing: Regular zinc layer thickness 60–120 μm; Electro-galvanizing: 8–20 μm; Engineering outdoor products are preferred to use hot-dip galvanizing products.
GB/T 6728 (Cold-Rolled Steel Sections), GB/T 13912 (Technical Requirements for Metal Galvanizing Coatings)
Shixinda's Hot Dip Galvanized Square and Rectangular Steel Tube is made from Q235B/Q355B carbon steel black-painted square and rectangular tubes as the base material. It is produced through hot-dip galvanizing and galvanized strip forming processes and is a national standard hollow steel section. It is divided into two types of materials: square tubes and rectangular tubes. The core positioning of the product is as general structural steel sections for engineering anti-corrosion and load-bearing, suitable for indoor and outdoor construction scenarios such as building frames, municipal guardrails, photovoltaic supports, equipment racks, and outdoor landscape projects.
The core selling points are: national standard quality products, dense and uniform zinc coating, with self-repairing anti-rust ability, resistance to moisture and salt-alkali corrosion; the pipe has high straightness and no distortion or deformation, excellent bending load-bearing performance, clean finished appearance without the need for painting, significantly reducing construction procedures and maintenance costs in the future, and supporting on-site processing such as cutting and welding.
Hot-dip Galvanized Square and Rectangular Steel Tube is available in a wide range of specifications: mainstream sections are 10×10mm to 200×200mm, with wall thicknesses ranging from 1.0 to 10.0mm; standard fixed lengths are 6 meters per piece, and non-standard lengths can be customized. The hot-dip zinc coating is 60-120 μm, covering all categories and meeting national production standards of GB/T6728 and GB/T13912. The factory directly ships the goods in stock, ensuring stable supply, and is the preferred anti-corrosion profile for engineering steel structures.
A: From December 26th to January 8th of the lunar calendar.
A: Yes, I will.
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