The black frame pipe refers to the welded steel pipe whose surface has not been treated in any way. It is used for construction pipes, construction site supports, and safety protection supports. Of course, some black pipes with large cross-section pipe diameters are used in transmission pipelines. The 48.3 black frame tube has a diameter of 48.3mm, a thickness of 3.5mm, and a general length of 6m. It is mainly used in the erection of support products in construction projects and has a good bearing capacity.
Generally, the black frame tube is used in the erection of the stent platform, because its quality inspection, including: tensile strength, yield point, reduction of area, and hardness, must meet the national GB/T13793 standard. The quality of such black frame tube products Can be guaranteed.
The difference between the 48.3mm black frame tube and the galvanized frame tube is that one surface is not treated with any anti-rust treatment, and the other surface is treated with hot-dip galvanizing, which has better anti-rust and anti-corrosion performance. Compared with the prices of the two, the ton price of black frame pipe is much cheaper than that of galvanized frame pipe, so it is the first choice for many small construction units and leasing companies.
Post time: Dec-06-2021