Cold rolled coil is made of hot rolled coil at room temperature and below recrystallization temperature, including plate and coil. Among them, the sheet delivery is called steel plate, also known as box plate or flat plate; the long and rolled delivery is called steel strip, also known as rolled plate.
It is rolling under recrystallization, but it is generally understood as rolling of materials rolled at room temperature. Aluminum cold rolling is divided into plate rolling and foil rolling. The thickness above 0.15 ~ is called plate, and the thickness below 0.15 ~ is called foil. In Europe and America, 3 ~ 6 continuous rolling mills are used as cold rolling equipment.
Due to no heating, there are no pitting and scale defects in hot rolling. The surface quality is good and the surface finish is high. Moreover, the dimension precision of cold rolled products is high, and the properties and structure of products can meet some special requirements, such as electromagnetic properties, deep drawing properties, etc.
Specification: thickness is 0.2-4mm, width is 600-2000 mm, length of steel plate is 1200-6000 mm.
Brand: q195a-q235a, q195af-q235af, q295a (b) - Q345 a (b); SPCC, SPCD, spce, st12-15; dc01-06
Performance: mainly made of low carbon steel, with good cold bending and welding performance, as well as certain stamping performance.
It has a wide range of applications, such as automobile manufacturing, electrical products, rolling stock, aviation, precision instruments, food cans, etc. Cold rolled steel sheet is the abbreviation of common carbon structural steel cold rolled sheet, also known as cold rolled sheet, commonly known as cold rolled sheet, sometimes mistakenly written as cold rolled sheet. Cold plate is a kind of steel plate with thickness less than 4mm, which is hot rolled from ordinary carbon structural steel and further cold rolled. Due to the fact that no scale is produced during rolling at room temperature, the cold plate has good surface quality, high dimensional accuracy, and annealing treatment, its mechanical and technological properties are better than that of hot-rolled sheet steel. In many fields, especially in the field of home appliance manufacturing, it has gradually replaced hot-rolled sheet steel.