What does "PD140*4" and "PL12*150" mean in the steel structure drawing?
Homogeneous and isotropic material, an ideal elastic body, the most consistent with the basic assumption of the general engineering mechanics; material has good plasticity and toughness, and can have large deformation, can well withstand dynamic loads; short construction period; the high degree of industrialization, can carry out specialized production of high degree of mechanization; processing high precision, high efficiency, good sealing performance, so it can be used in the construction of tank, tank and transformer etc..
Steel structure engineering is mainly made of steel, and it is one of the main types of building structures. Steel is characterized by high strength, light weight, overall rigidity and deformation ability, so it is suitable for building large span and ultra high and super heavy buildings;
PD is a steel tube with a length of 140 and a diameter of 4.PL is a steel plate with a thickness of 12 and a width of 150.
