100*150 square tube

200*60 square tube

80x120 square tube

Below is an introduction to the three types of rectangular tubes:

- **100×150 Square Pipe**: - **Dimension Features**: With side lengths of 100mm and 150mm, this larger-sized square pipe boasts a higher section modulus and flexural strength, indicating its excellent stability and strength when subjected to bending loads. - **Applications**: Widely used in building structures, such as pillars and beams in large buildings, capable of withstanding significant pressure and bending moments; in bridge construction, it can serve as supporting structures for bridges; in the field of mechanical manufacturing, it is used to make frames and bases for large equipment; in steel structure projects, it is commonly used to construct large-scale steel frames, such as the main structures of factories and sports stadiums. - **200×60 Square Pipe**: - **Dimension Features**: Featuring a long rectangular cross-section with a width of 200mm and a height of 60mm. This size of square pipe maintains a certain load-bearing capacity while offering a larger slenderness ratio. - **Applications**: In the construction field, it can be used for curtain wall structures, serving as the frame for the curtain wall, providing support while ensuring the flatness of the curtain wall; in the framework of large industrial equipment, such as the outer shell frames of some large machine tools; in municipal engineering, it can be used to make streetlight poles, traffic sign poles, and more. - **80×120 Square Pipe**: - **Dimension Features**: With side lengths of 80mm and 120mm, this is a medium-sized square pipe that combines certain strength with good spatial adaptability. - **Applications**: Often used in small beam and column structures in construction projects, such as internal structural beams in some small buildings; in the field of decoration and renovation, it can be used to make indoor partition frames, meeting structural needs while offering aesthetic appeal; in furniture manufacturing, some specially designed furniture may use this size of square pipe as the frame material.