Tianjin Lefin Industrial Co., Ltd is one of the most experienced manufacturers and suppliers of bending square tube in China. Please feel free to buy high quality bending square tube from our factory. Good service and reasonable price are available.

Rectangular Metal Tube Bending

Bending rectangular tubing is a more difficult process than round tube bending (all else being equal: surface area, radius, wall thickness, material type, etc.). As with almost all metal bending processes, the tighter the bend, the more difficult it becomes. Similarly, bending rectangular tubing with thinner walls is more difficult than bending thicker walls (provided the bending machine has the power to curve the thicker sections).

Unlike round tubing, however, rectangular tubing can be rolled “off-axis,” as in the case of the Little Village Academy (see photo below). For this project, Chicago Metal Rolled Products (CMRP) provided 14” x 4” x 3/8” bent rectangular tubing that was rolled to inside radii from 17’ to 21’, with a 10.9° pitch.

Applications for Curved Rectangular Tube

Bent rectangular tube is used in OEM applications like roll-over protection, framework, bumpers, and playground equipment. Architectural structures of all kinds are built using bent rectangular tube: roofs, trellises, canopies, arches, balconies, and portals. Like round and square tubing, rectangular tubing can be formed into a helix, most often for circular staircases.