Pickled plate and hot-rolled plate are two different types of steel with different characteristics and uses.
First of all, pickled plate is a surface treatment method that uses dilute hydrochloric acid or dilute sulfuric acid solution to remove impurities such as oxide film and rust on the metal surface. The surface of the steel after pickling is smooth and clean, with good corrosion resistance and fatigue resistance, suitable for construction, vehicles, ships and other fields.
Hot-rolled plate is a steel production process in which the steel billet is heated to a high temperature in a blast furnace and then rolled through a high-pressure rolling mill to obtain steel of the required specifications and thickness. Hot-rolled plate has good mechanical properties and processing properties, and is suitable for the manufacture of various structural parts, load-bearing parts, and other fields.
Therefore, the main difference between pickled plate and hot-rolled plate lies in the difference in their treatment methods and production processes. Pickled plate mainly focuses on the effect and corrosion resistance of steel surface treatment, while hot-rolled plate pays more attention to the performance and processing convenience of steel. In practical applications, it is necessary to select the appropriate steel type and processing method according to specific usage needs and requirements. At the same time, we also need to have a certain understanding and knowledge of the characteristics and scope of use of different steel materials to better select and apply them. The following are some aspects to introduce the differences between the two. Raw materials. Hot-rolled plates and pickled plates have significant differences in raw materials. Hot-rolled plates are plates formed by the continuous rolling of steel billets in a high-temperature environment. Therefore, their surfaces have certain oxidation and rust. However, pickled plates are further processed based on hot-rolled plates. The pickling technology removes surface oxidation, rust, impurities, and other undesirable substances, making the surface of the plate smoother.
Production process
The difference between pickled plate and hot-rolled plate in the production process is like alternating day and night, each with its unique process. The production process of hot-rolled plates is like cutting a large piece of cloth into the required size. After some processing, the cloth is cooled and cut into the plates we need. The production process of pickled plates is like carefully washing the hot-rolled plate to remove rust and impurities. Then, after rinsing, it is as clean as new and enters the subsequent process of drying and brightening. Therefore, the production process of pickled plate is more like a tortuous journey than that of hot-rolled plate, and the process is relatively complicated.
Performance characteristics
Pickled plate and hot-rolled plate each have their unique performance characteristics. The surface of the pickled plate is smooth and smooth, like a mirror, and has excellent corrosion resistance, so it is suitable for those occasions with high requirements for surface quality and corrosion resistance. The surface of a hot-rolled plate is slightly rougher than that of a pickled plate, but its dimensional accuracy is very high, which meets the needs of those occasions that require high-precision plates.
In addition, the mechanical properties of pickled plate are slightly inferior to those of hot-rolled plate, but its plasticity, ductility, and toughness are quite outstanding. Just like a wheat field in spring, pickled plate performs well in deformation and ductility, and its plasticity and toughness are as flexible as dancing willow branches.
Application scenarios
Pickled plate and hot-rolled plate each have their unique fields of application. Pickled plate, due to its excellent requirements for surface finish and corrosion resistance, is widely used in automobiles, home appliances, construction, machinery, and other fields. Hot-rolled plates are unique for their high strength and high precision, and are widely used in the fields of ships, bridges, petrochemicals, etc. In essence, pickled plates and hot-rolled plates are two metal plate products with their characteristics. pickled plate and hot-rolled plate differ in raw materials, production processes, and performance characteristics. Therefore, when choosing a suitable plate, we must fully consider its usage scenarios and specific requirements, and then make a comprehensive trade-off among the above important factors, and finally select the type of plate that suits us.
