Cold rolled sheet price and material hot rolled sheet and cold rolled sheet difference and application

Cold rolled sheet is made from hot rolled coil, rolled at room temperature below the recrystallization temperature, including plate and coil. The following is a small introduction to the price of cold rolled plate and other related knowledge.

What material does cold rolled sheet include?

Cold rolled sheet is hot rolled coil as raw material, rolled at room temperature below the recrystallization temperature, including plate and coil, many domestic steel mills such as Baosteel, Wuhan Iron and Steel, Anshan Iron and Steel, etc. can be produced. Among them, the sheet delivery is called steel plate, also known as box plate or flat plate; length is very long, the coil delivery is called steel strip, also known as coil plate.

Production process: the production process is not heated, so there is no hot-rolled often occurring defects such as pockmarks and iron oxide, good surface quality, high finish. Moreover, the dimensional accuracy of the cold rolled products is high, and the performance and organization of the products can meet some special requirements for use, such as electromagnetic properties and deep drawing properties.

Specifications: thickness 0.2-4mm, width 600-2000mm, plate length 1200-6000mm.

Grades: Q195A-Q235A, Q195AF-Q235AF, Q295A(B)-Q345A(B); SPCC, SPCD, SPCE, ST12-15;...

These products are available in a wide variety of sizes and thicknesses. DC01-06

Performance: mainly low carbon steel grades, required to have good cold bending and welding performance, as well as a certain stamping performance.

Applications: Cold rolled sheet and strip are used in a wide range of applications, such as automobile manufacturing, electrical products, rolling stock, aviation, precision instrumentation, food canning and so on.

Cold rolled plate prices:

March, cold rolled market prices are still mainly up, up 200-400 yuan / ton, a record high in recent years. The surface of the market may be the price of more "scenery", but the actual demand is not satisfactory, Zhuochuang research, at present about 60% of the merchants said that due to the downstream purchasing is not active, there is no optimism about the market, so the market wait-and-see atmosphere remains strong. Based on the current macro forecast favorable, the traditional peak season is coming under the market, some steel mills have signs of rapid resumption of production, bringing risks to the late supply pressure. However, the current steel mills to reduce production, production restrictions are still the main task, in the short term, the supply and demand relationship is still contradictory, the possibility of market prices continue to rise is not great. Zhuochuang expects that short-term steel mills if production resumed in April just put into the market, when the market inventory pressure increased, the formation of a certain price suppression, April prices or weak consolidation run, down or in about 200 yuan / ton.

Weight per sheet = 0.00785X1.5MMXWidthXLength

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

The difference between hot rolled sheet and cold rolled sheet can be attributed to the following:

1, the cold plate is processed using cold rolled surface with no oxidized skin, the quality is good. The hot plate using hot processing surface oxide skin, plate thickness has under the difference.

2, hot-rolled plate toughness and surface flatness is poor, the price is lower, while the cold-rolled plate stretching is good, toughness, but the price is more expensive.

3, rolling is divided into cold rolled and hot rolled, with the recrystallization temperature as the point of differentiation.

4, cold rolling: cold rolling is generally used in the production of strip, its rolling speed is higher hot rolling: hot rolling temperature is similar to the temperature of forging

5, the surface of the hot-rolled plate without plating into a black-brown color, the surface of the cold-rolled plate without plating is gray. After plating can be distinguished from the smoothness of the surface, the smoothness of the cold plate is higher than the hot plate.

Cold rolled plate applications:

Cold rolled plate has good performance, that is, through cold rolling, you can get a thinner thickness, higher precision cold rolled strip and steel plate, high straightness, high surface finish, cold rolled plate surface clean and bright, easy to coat and plating process, more varieties, wide range of uses, and at the same time, has a high performance of stamping and not aging, low yield point, so cold rolled plate with a wide range of uses, mainly used in automotive, printing, printing and plating, cold rolled plate surface is gray. Uses, mainly used in automobiles, printing iron barrels, construction, building materials, bicycles and other industries, but also the production of organic coated steel plate is the best choice of material.

Hot rolled steel applications:

Because of the hot rolled steel products have high strength, good toughness, easy to process molding and good weldability and other excellent properties, and therefore is widely used in ships, automobiles, bridges, construction, machinery, pressure vessels and other manufacturing industries.