The difference and application of cold-rolled sheet price and material hot-rolled sheet and cold-rolled sheet

Cold-rolled sheets are made from hot rolled coils and rolled at room temperature and below the recrystallization temperature, including plates and rolls. The following small series for everyone to introduce cold rolled plate prices and other related knowledge.

What material does the cold rolled plate include?

Cold rolled coils are made from hot rolled coils and are rolled at room temperature below the recrystallization temperature, including plates and coils. Many domestic steel mills such as Baosteel, Wuhan Iron and Steel, and Anshan Iron and Steel can be produced. Among them, the delivery of steel sheet is called steel plate, also called box plate or flat plate; the steel plate with long length and rolled delivery is also called coil plate.

Production process: Because there is no heating in the production process, there are no defects such as pits and oxide scales that often appear in hot rolling, and the surface quality is good and the finish is high. In addition, the dimensional accuracy of the cold-rolled product is high, and the performance and organization of the product can meet certain special requirements such as electromagnetic performance and deep-drawing performance.

Specifications: thickness of 0.2-4mm, width of 600-2 000mm, steel plate length of 1 200-6 000mm.

Grades: Q195A-Q235A, Q195AF-Q235AF, Q295A(B)-Q345 A(B); SPCC, SPCD, SPCE, ST12-15; DC01-06

Performance: The main use of low-carbon steel grades requires good cold bending and welding performance, as well as a certain stamping performance.

Application: Cold rolled strips are widely used, such as automotive manufacturing, electrical products, rolling stock, aviation, precision instruments, food cans, etc.

Cold rolled plate price:

In March, the market price of cold-rolled steel was still higher than that of the previous year, which rose by 200-400 yuan/ton, a record high in recent years. The market may have a relatively "price" but the actual demand is not satisfactory. Zhuochuang researched and found that about 60% of the merchants said that because the downstream purchase is not positive and there is no optimism for the market outlook, the market is still seeing a strong atmosphere. Based on the current favorable macroeconomic forecasts and the arrival of the traditional peak season, some steel mills have signs of rapid production recovery, which poses a risk of late supply pressure. However, at present, the reduction of production and production restriction of steel plants are still the main tasks. In the short term, the relationship between supply and demand is still contradictory, and it is unlikely that market prices will continue to increase. Zhuo Chong expects that if the short-term steel mills resume production, they will be put into the market in April. At that time, the market pressure on the stocks will increase, and the price will form a certain pressure. In April, the price or weak consolidation will be reduced, which may be about 200 yuan/ton.

Weight per sheet = 0.00785 X 1.5MM X Width X Length

Price per sheet = price per ton X weight per sheet / 1000

The difference between hot-rolled and cold-rolled sheets can be attributed to the following points:

1. The cold plate adopts cold rolled surface without oxide scale and has good quality. The hot plate has oxide scales on the hot-zipped surface, and the plate thickness is inferior.

2. The toughness and surface smoothness of the hot-rolled sheet are poor, and the price is low, while the cold-rolled sheet has good stretchability and toughness, but the price is more expensive.

3. Rolling is divided into cold rolling and hot rolling, and the recrystallization temperature is the distinguishing point.

4. Cold rolling: Cold rolling is generally used to produce strips. Its high rolling speed is hot-rolled: the temperature of hot rolling is similar to that of forging.

5. The surface of the non-plating hot-bar plate is dark brown, and the surface of the non-plated cold-rolled plate is gray. After electroplating, it can be distinguished from the smoothness of the surface. The smoothness of the cold rolled plate is higher than that of the hot rolled plate.

Cold rolled plate application:

The cold-rolled steel sheet has good performance, that is, cold-rolled steel sheet and cold-rolled steel sheet and steel sheet with higher thickness can be obtained. The flatness is high, the surface finish is high, and the surface of the cold-rolled sheet is clean and bright, and is easy to be coated. Processing, variety, wide use, at the same time with high stamping performance and timeless, low yield point characteristics, so cold rolled sheet with a wide range of uses, mainly used in automobiles, printed iron barrels, construction, building materials, bicycles and other industries, At the same time, it is the best choice for producing organic coated steel plates.

Hot rolled plate applications:

Because hot rolled steel sheet products have high strength, good toughness, easy processing and molding and good weldability, they are widely used in ships, automobiles, bridges, construction, machinery, pressure vessels and other manufacturing industries.

The above is related to the introduction of cold-rolled plate prices, if you want to learn more relevant information, please pay more attention to this site, will provide you with more complete, more detailed, updated information information.  

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