Office Chair Flat Tube

Office chair flat tubes typically feature a rectangular flat-profile cross-section, are made of Q195 black annealed carbon steel, and are manufactured using a cold-bending and black annealing forming process. They are characterized by their resistance to cracking and deformation during bending, ease of welding for secure joints, and excellent bending and compression resistance.

Material and Process

The core material of office chair flat tubes is Q195 black annealed carbon steel, a low-carbon steel with a relatively low carbon content, offering good plasticity and toughness while maintaining a certain level of strength. The black annealing process involves annealing the steel, resulting in a black oxide layer on the surface. This treatment not only enhances the steel's corrosion resistance but also improves its machinability. The cold-bending forming process involves bending the steel into the desired shape at room temperature using molds. Compared to hot-bending processes, cold bending better preserves the steel's mechanical properties, avoiding performance degradation caused by high temperatures. Flat tubes produced through the cold-bending and black annealing forming process are less prone to cracking and deformation during bending, meeting the design requirements for complex structures in office chairs.

Performance Characteristics

Office chair flat tubes exhibit excellent bending and compression resistance, thanks to their rectangular flat-profile cross-section design. This cross-sectional shape effectively disperses stress when subjected to vertical loads, enhancing structural stability. Additionally, the flat surface of the tubes facilitates easy welding, resulting in secure and reliable joints that ensure the overall structural strength of the office chair. Furthermore, the tube ends are flattened and deburred, improving product aesthetics and preventing scratches to users during use, thereby enhancing safety.

Application Scenarios

Office chair flat tubes have a wide range of applications, including common office desk frame tubes, training table and chair tubes, as well as lifting desk tubes. Their support for custom non-standard specifications allows them to meet the personalized needs of different customers regarding the size and shape of office chairs. For example, the black annealed flat tubes produced by Bazhou Haoyue Kaiheng Technology Co., Ltd. are widely used in the processing and manufacturing of campus desk and chair seating due to their excellent performance and flexible customization services, providing comfortable and durable seating solutions for educational environments.