steel plate finish from mill,Expert Views on Steel

steel plate finish from mill,The Basics of Steel Plate Finish from Mill The finish of a steel plate as it comes from the mill can vary greatly. There

The Basics of Steel Plate Finish from Mill

The finish of a steel plate as it comes from the mill can vary greatly. There are different processes that mills use to create these finishes. For example, one common finish is the hot - rolled finish. When steel is hot - rolled, it has a scaly and somewhat rough appearance. This is because during the hot - rolling process, the steel is passed through rollers at high temperatures, and oxides form on the surface.

Another type of finish is the cold - rolled finish. Cold - rolled steel plates usually have a smoother and shinier surface compared to hot - rolled ones. The cold - rolling process involves rolling the steel at room temperature or slightly above, which compresses the metal and gives it a more refined look. This type of finish is often preferred for applications where a more precise and aesthetically pleasing surface is required, such as in some manufacturing of metal products or in construction when a smooth surface is needed for things like cladding.

There are also mill finishes that are specifically designed for corrosion resistance. These finishes may involve coatings or treatments that are applied at the mill itself. For instance, some steel plates may have a galvanized finish, where a layer of zinc is added to protect the steel from rusting. This is very common in outdoor applications or in areas where the steel will be exposed to moisture or other corrosive elements.

Questions and Answers about Steel Plate Finish from Mill

Question: What are the main differences between hot - rolled and cold - rolled steel plate finishes from the mill?Answer: Hot - rolled steel plate has a scaly and rough appearance because it is rolled at high temperatures and oxides form on the surface. Cold - rolled steel plate has a smoother and shinier surface as it is rolled at room temperature or slightly above, and the metal is compressed.

Question: Why are some steel plates from the mill given a galvanized finish?Answer: Some steel plates are given a galvanized finish at the mill for corrosion resistance. The layer of zinc added protects the steel from rusting, which is useful for outdoor applications or in areas with moisture or corrosive elements.