Square and rectangular tubes are economical hollow section steel profiles, featuring lightweight and outstanding mechanical properties. They outperform solid steel in terms of bending and torsion resistance, and have strong bearing capacity for multi-directional loads. They are suitable for various industrial engineering requirements. Our product series includes Hot dip Galvanized Square Steel Tube, Pre galvanized Square and Rectangular Steel Tube, etc.
Shixinda has been deeply engaged in steel supply, specializing in the full range of national standard tubes. The specifications cover 15×15mm to 900×900mm square tubes, and 10×20mm to 800×1000mm rectangular tubes. The wall thickness ranges from 1.5 to 40mm, with complete materials such as Q235 and Q355. It supports hot dip galvanizing, fixed-length cutting, and further processing such as deepening.
Square and rectangular tubes, with their regular and closed cross-sections, distribute forces evenly and are less prone to deformation. They combine the advantages of lightweight and high-strength load-bearing. They have strong processing adaptability and are core materials for infrastructure and steel structures. Shixinda focuses on the production and sales of various national standard and non-standard tubes, using high-quality raw materials of Q235B/Q355B. The automated cold bending and welding processes ensure the firmness of the welds and the smoothness of the surface. The entire process undergoes multiple quality inspections, allowing for customized dimensions, anti-corrosion galvanizing, and various mechanical deep processing. It eliminates the middle price difference, ensuring stable supply time and can fully meet the material requirements for various scenarios such as factory construction, photovoltaic projects, municipal engineering, equipment racks, and more.
This tubes have a closed and symmetrical hollow cross-section, with outstanding mechanical properties. Under the same weight, their bending, torsion, and compression resistance are far superior to round tubes and open-type steel. The forces are evenly distributed, and they are less prone to deformation. They are lightweight yet have strong bearing capacity. The surface is flat and the edges are distinct. Cutting, welding, drilling, and bending processing are convenient. The assembly and positioning are simple, significantly improving on-site construction efficiency. They can also undergo hot dip galvanizing treatment for outdoor corrosion resistance, with a longer service life. They combine both structural load-bearing and decorative aesthetic purposes.
Shixinda has been deeply engaged in steel supply, maintaining full specifications of national standard square and rectangular tubes in stock, covering mainstream materials such as Q235B and Q355B, with seamless, welded, and galvanized categories. The raw materials are strictly controlled and inspected, ensuring precise dimensions, uniform wall thickness, and firm welds. It supports fixed-length cutting and various specialized processing. It provides one-stop solutions for various engineering projects such as steel structure factories, photovoltaic supports, municipal guardrails, mechanical racks, and curtain wall keels, eliminating middleman price differences, ensuring stable supply, and offering high-quality, cost-effective pipes for a wide range of engineering customers.
