40*25*1.2mm 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.