Basic situation analysis of hot-rolled structural pipes
The head and tail of this straight curl usually exhibit tongue and fish tail shapes, with poor accuracy in thickness and width. There are often defects such as wave shaped, folded edges, and tower shaped edges.
If the coil weight is relatively heavy, the inner diameter of the steel coil is 760mm. After the straight coil is processed through head cutting, tail cutting, edge cutting, and multiple passes of straightening, leveling, and other finishing lines, it is cut or re rolled, that is, hot-rolled steel plates and other products. Generally, if the hot rolled finished coil is pickled, the oxide skin can be removed and coated with oil, which then becomes the hot rolled pickled plate coil. Of course, this also belongs to a type of hot-rolled structural pipe, and correct judgment must be made when selecting it.