How much is a ton of steel pipe outside the frame?

Steel pipes cost 5000 yuan per ton. Steel pipe is not only used for conveying fluids and powdery solids, exchanging heat energy and manufacturing mechanical parts and containers, but also an economical steel. Using steel pipes to make grids, columns and mechanical supports of building structures can reduce weight, save 20-40% metal and realize mechanized construction of factories. Using steel pipes to make highway bridges can not only save steel and simplify construction, but also greatly reduce the area coated with protective layers and save investment and maintenance costs.