The specifications, models, dimensions and weight of U-shaped channel involve many aspects, including models, dimensions and theoretical weight. In China, the main models of U-shaped steel are 18U, 25U, 29U, 36U and 40U, of which 18U and 25U are waist-positioned, while 29U and 36U are ear-positioned. The theoretical weights of these models are 18.96 kg/m, 24.76 kg/m, 29 kg/m, 35.87 kg/m and 40.05 kg/m, respectively. For example, the theoretical weight of 18UY is 18.96 kg/m, while the theoretical weight of 25U is 24.95 kg/m. In addition, the specifications and sizes of U-shaped channel steel also include a variety of models, such as 5#, 6.3#, 8#, 10#, 12#, 14#, 16#, 18#, 20#, 22# and 25#. Each model has different sizes and theoretical weights, and the specific sizes and weights are determined according to actual needs.
When using 29U steel, it is necessary to pay attention to selecting appropriate specifications and sizes, designing and selecting materials according to actual load conditions, and protecting its surface from damage during processing and installation to avoid affecting its service life. 29U steel has an I-shaped cross-section and has a high load-bearing capacity and stability.
In summary, the specifications, models, dimensions and weights of U-shaped channel steel vary depending on the model and specific needs. When selecting, its load-bearing capacity, stability and actual use conditions should be considered.