Accreditation Administration System:
Hot rolled steel plate and strip products are made of slab (mainly continuous casting slab) by roughing mill and finishing mill after heating. The hot steel strip from the last finishing mill is cooled to the set temperature by laminar flow, and then rolled into steel strip by coiler. The cooled steel strip coil is processed into steel plate, flat coil and longitudinal cut steel strip products by different finishing lines (leveling, straightening, cross cutting or longitudinal cutting, inspection, weighing, packaging and marking) according to different needs of users.
Due to its high strength, good toughness, easy processing, good weldability and other excellent properties, hot rolled steel plate products are widely used in shipbuilding, automobile, bridge, construction, machinery, pressure vessel and other manufacturing industries. With the development of new technologies for controlling the size accuracy, shape and surface quality of hot rolling as well as the appearance of new products, hot rolling steel plate and strip products have been more and more widely used and become more and more competitive in the market. Generally speaking, hot rolling steel plate products have a wide range of specifications and uses, from general engineering structures to the manufacture of automobiles, bridges, ships, boilers and pressure vessels, etc., which are widely used.
For different purposes, the requirements for material properties, surface quality, dimension and shape accuracy of steel plates are also different. Therefore, it is necessary to understand the varieties, materials, characteristics and uses of hot-rolled steel plate products, so as to achieve economic and reasonable utilization.
