Steel is offered in several shapes, specifications, grades and finishes. There are various kinds of steel which are used in numerous applications like wind turbines, vehicles, appliances and infrastructure. Moreover, the process of manufacturing steel can also have an impact on steel products. Therefore, it is essential to contact a reliable China Cold work steel D2 D3 Supplier to have your project done.
Talking about grades, there are two main types of pre-fabricated steel products known as hot rolled steel and cold rolled steel. Thinking about the difference between the two? Read in to get the answer:
It is essential to note the main difference between hot rolled and cold work steel. The significant difference is in the process. Hot rolling means process is done with heat. Cold rolling means process performed at or near room temperature. Although these methods affect the application and overall performance, they should not be confused with specifications or steel grade that relates to performance ratings and metallurgical composition. A Rust-proof Mirror Steel Manufacturer can tell that the specifications can be either cold or hot rolled.
Understanding the differentiating points between hot and cold steel is crucial to prefer one over the other.
Hot rolled steel is a steel that gets roll-pressed at extreme temperature, i.e. over 1,700 Degrees Fahrenheit. The temperature is above the heat needed for re-crystallization for most steels. This makes steel to form and result in products which are easier to work with.
Since hot work steel is cooled after the process, there is less control over its final shape that makes it less suitable for precision uses. Hot rolled steel is often utilized in applications where micro specific dimensions are not critical. Construction work and railway tracks often use hot rolled steel.
Following are the characteristics held by hot rolled steel:
Cold rolled steel is permanently hot rolled steel which goes through further processing. Once hot rolled steel cools down, it is then re-rolled at room temperature for achieving more specific dimensions and better surface qualities.
Following are the characteristics that can identify cold rolled steel:
I hope that this blog will clear the difference among the two steel products.