Structural Steel Pipe Have Good Prospect

Pipe is kind of very good support material .Structural steel pipe as the support material, the application prospect. Pipe used in steel structure building has a good prospect. At the same time, because of circular tube and the torque tube each have characteristics, have the most reasonable use range, use the moment of steel tube column is better than round tube performance as buildings. In the corner position, for example, using a square tube can make the largest effective use of the building area. Therefore, in the steel structure housing and high-rise steel structure building, the moment of steel tube is more promising. At present, the steel structure industry in our country, using round steel tube is more, technology is mature, also have the corresponding product standards and the application procedures. While using the round steel tube, the important parts of some buildings generally require the use of seamless carbon steel tube, but on the other hand because of the seamless steel tube is expensive, on the other hand, due to large welded pipe diameter can be done, wall also can meet the design requirements, most still use welded pipe construction. As part of the spatial grid structure with straight seam welded pipe, part of the use of seamless steel tube. At present, the domestic production of square torque tube products less, especially as a top or large-span building columns, wall thickness is still can not meet the use requirement, even the baoshan iron and steel institute of technology in the production of the 500 mmx500mm moment of steel tube, wall thickness to reach 19 mm, and guangzhou baiyun international airport terminal still adopts imported billet tube. Our country is still in building is widely applied box beam. It consists of four pieces of thick plate welding, wall thickness requirements are higher, such as usually required wall thickness to 60 mm to 20 mm, or even 80 mm and 100 mm. 2008 Olympic Games main stadium "bird's nest" box beam, column, thickness is general, 60 mm or 80 mm to 50 mm, even more than 100 mm. If part can use square mild steel pipe instead of the moments, will bring significant technical and economic effect of some foreign enterprises due to the use of special production craft, have been able to produce big moment of steel tube wall thickness of the party, the party moment of steel tube compared with box beam, can greatly reduce the workload of welding, also can reduce pollution to the environment due to welding, steel such as rust protection performance also has the edge, the surface is more beautiful.