Round Tube Steel Structural Components

Round Tube Steel Structural Components Overview

Round tube steel structural components, also known as Hollow Structural Sections (HSS), are cylindrical, hollow steel tubes used in construction and various industries for their strength, versatility, and efficiency. They are made from different types of steel, including carbon steel, stainless steel, and mild steel, and are produced as either seamless or welded tubes. The choice of material and manufacturing process depends on the specific application's strength, corrosion resistance, and cost requirements.

Outer Diameter (D): φ48mm to φ1219mm (common), larger sizes available upon request  

Wall Thickness (t): 2.5mm to 50mm (depending on load capacity and processing capabilities)  

Length (L): ≤12m (single-piece transport length), longer lengths available via assembly

Materials: Q235B, Q355B, Q355D, Q460, Gr.B, S355, etc.

Manufacturing Methods: hot-rolled seamless tubes, straight seam welded tubes (ERW), spiral welded tubes (SSAW), custom-made welded round tube

Round Tube Steel Structural Components Features

1. Aesthetically pleasing and sleek: The circular cross-section has a streamlined design, offering visual appeal and meeting the high aesthetic requirements of modern architecture.

2. Superior load-bearing performance: The circular tube cross-section has no weak axis, enabling it to uniformly withstand loads from all directions. It exhibits strong torsional resistance and excellent stability.

3. Lightweight structure: Compared to other structural steel with equivalent strength, circular tube structural steel components are lighter in weight, contributing to reduced structural self-weight.

4. Easy to connect and process: Can be connected using various methods such as welding, flanges, and bolts, making manufacturing and installation convenient.

5. Excellent wind and seismic resistance: Especially suitable for structural areas with significant wind loads and seismic effects.

6. High durability: After hot-dip galvanizing or coating treatment, it has good corrosion resistance and is suitable for outdoor or harsh environments

1. Spatial structural components: Commonly used as main chords, diagonal members, etc., in space frames, trusses, and membrane structures, such as sports venues, exhibition halls, and airport terminals.

2. High-rise and super-high-rise buildings: Used as columns, support systems, or reinforcing components to enhance the overall stiffness and stability of the building.

3. Transportation Facilities: Applied to bridge guardrails, columns, signposts, soundproof screen supports, etc.

4. Municipal and Public Buildings: Such as subway entrances, bus shelters, pedestrian overpasses, sculpture frameworks, etc.

5. Communication and Energy Engineering: Used to manufacture communication towers, power transmission towers, photovoltaic supports, wind power towers, etc.

6. Agricultural and Industrial Facilities: Used for greenhouse frameworks, industrial plant support systems, etc.

Production Standards

Seamless Steel Tubes: GB/T 8162-2018 (Seamless Steel Tubes for Structural Purposes)

Welded Steel Tubes: GB/T 13793-2016 (Straight Seam Electric Welded Steel Tubes)