40*25*1.5mm Rectangular Tube.

a rectangular hollow section (RHS) or rectangular steel tube, is a hollow structural section with a rectangular cross-section. Rectangular tubes are commonly used in construction, manufacturing, and engineering applications due to their strength, versatility, and ease of fabrication. Here are some key features and uses of rectangular tubes:

1. Cross-Sectional Shape: Rectangular tubes have a rectangular cross-section, characterized by two parallel sides of equal length (width) and two parallel sides of equal length (height). The corners are typically squared.
2. Dimensions: Rectangular tubes are specified by their dimensions, which include the width, height, and wall thickness. For example, a rectangular tube may be designated as 40mm x 25mm x 1.2mm, indicating a width of 40mm, height of 25mm, and wall thickness of 1.2mm.
3. Material: Rectangular tubes are commonly made from materials such as steel, aluminum, stainless steel, or other alloys. The choice of material depends on factors such as strength requirements, corrosion resistance, and intended application.
4. Structural Strength: Rectangular tubes offer excellent strength-to-weight ratios, making them suitable for structural applications such as building frames, supports, and trusses. The hollow design of the tube allows for efficient distribution of loads while minimizing material weight.
5. Fabrication: Rectangular tubes can be fabricated using various methods, including hot rolling, cold rolling, or welded construction. They can be cut, drilled, welded, and machined to meet specific design requirements.