Perhaps many people in the selection of steel, do not know how to pick, cold rolled steel coil or hot rolled steel coil, what is the difference between the two, which is a little better?
I. Intrinsic reality
1. Cold rolled steel coil/ Cold rolled steel plate/ Cold rolled steel sheet
Cold rolled steel is actually steel that is produced by thinning the product to be used at normal temperatures to produce the desired thickness.
2. Hot Rolled Steel coil/ Hot rolled steel plate/ Hot rolled steel sheet
A type of steel that is formed by raising the temperature to a temperature higher than that at which it can crystallize and then rolling it.
Ⅱ.External characteristics
1. Cold rolled steel thickness can be customized to the degree of precision to the number, the appearance is more beautiful, made of products with a particularly smooth surface. However, it is not just only beautiful, the use of the sense of superior processing mechanical ability is also very good!
2. With hot rolled steel, the metal is not particularly hard and is more easily deformed. But also because of this, can largely reduce the energy consumption required when changing the shape of the metal.
Hot rolled steel is more suitable for relatively large processing work, such as the appearance of obvious crack healing, minimize the defects produced when the product is made, and enhance the processing ability of the alloy.
III. Production process
1. Cold rolled steel for the power requirements of the machine is relatively high, while the production efficiency is slow. Because in the process of rolling steel production needs to be softened processing, but also annealing, so the cost of the problem is also a need to consider the main aspects. 2.
2. hot rolled steel production is relatively simple, and the speed of steel production is also relatively fast. Just to master the beginning and end of the time, master the alloy fixed temperature and recrystallization temperature.
Ⅳ.The scope of use
1. Cold rolled steel is widely used in the field of home appliances as well as precision equipment, such as the production of automobiles, the production of aviation instruments, and the outer packaging of canned goods. Because they are rolled mostly at room temperature, there is no oxidized part on the outer skin. Cold rolled steel made in this case, the quality is very good, precision is also guaranteed, the thickness is also good. So in the field of home appliances, it is still superior to hot rolled steel.
2. Hot rolled steel because in the production will add some such as P, C, CU and other types of special elements, so it has a very good resistance to corrosion. Mostly used in structural parts and ships and other production process, because of good pressure resistance, so it can also be applied to petrochemical, as well as surgical supplies in the production.
Seeing this, do you have a better understanding of cold rolled steel and hot rolled steel? I believe you can choose the steel you really need.
Post time: Nov-13-2023