Overview
The 220x100x10 structural rectangular tube is a standardized steel profile with external dimensions of 220 mm (height) × 100 mm (width) and a uniform wall thickness of 10 mm. It is engineered for high-stress applications due to its geometric efficiency and material strength. Commonly produced via hot-rolling or cold-forming processes, this tube is a staple in B2B supply chains for industrial and construction sectors. Its rectangular cross-section provides superior bending resistance compared to round tubes, making it ideal for frameworks requiring rigidity. Manufacturers often offer customization in length (6m or 12m standard) and surface treatments (e.g., galvanizing, powder coating) to suit project-specific needs.
Structure and Working Principle
The tube’s structural integrity stems from its hollow rectangular design, which optimizes material distribution to resist torsional and compressive forces. The 10 mm wall thickness ensures stability under heavy loads while minimizing weight. In applications, it functions as a linear load-bearing element, transferring stresses through welded or bolted connections to other components. Finite element analysis (FEA) is often employed during design to simulate performance under expected loads. The uniform thickness and right-angle corners facilitate easy integration with brackets, plates, and other structural elements, reducing assembly complexity in modular systems.
Key Features
Dimensional precision is critical, with industry standards like ASTM A500 or EN 10219 governing tolerances for straightness, flatness, and corner radii. Carbon steel variants (e.g., Q235) offer cost-effective strength, while stainless steel (e.g., 304) adds corrosion resistance for harsh environments. Additional features include fire resistance (depending on material) and adaptability to secondary processing (e.g., drilling, notching). The tube’s smooth surface allows for aesthetic finishes in visible applications, though mill scale removal may be required pre-treatment.
Application Areas
Primary uses include building skeletons for warehouses and high-rises, where it serves as columns or beams. In machinery, it forms bases for heavy equipment like presses or CNC machines due to vibration damping properties. Logistics systems utilize these tubes for conveyor frames and storage racks. Emerging applications include renewable energy infrastructure (solar panel supports) and modular construction, where prefabricated sections reduce on-site labor. Offshore platforms may specify galvanized or duplex steel tubes to withstand saltwater exposure.
Maintenance and Precautions
Routine inspections should check for corrosion, weld cracks, or deformation, especially in dynamic load environments. Protective coatings require reapplication per manufacturer guidelines—typically every 5–10 years for painted surfaces. Avoid point loads exceeding rated capacity to prevent buckling. Storage recommendations include stacking tubes horizontally on padded surfaces to prevent edge damage. Indoor storage is preferred; outdoor storage necessitates covering to avoid moisture accumulation inside the hollow section.
B2B Procurement Guide
Bulk purchases (e.g., full truckloads) often qualify for tiered pricing discounts. Request mill test certificates (MTCs) to verify material composition and mechanical properties. Lead times vary by order volume: 2–4 weeks for standard sizes, longer for customized batches. Partner with suppliers offering value-added services like precision cutting or pre-drilling. For international procurement, Incoterms (e.g., FOB, CIF) and compliance with regional standards (e.g., CE, GB) must be clarified. Spot-check dimensions and surface quality upon delivery using calibrated tools.
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