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Hot and cold sheets

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Hot and cold sheets

The distinctions between hot plate and cold plate are something that you, the valued buyer, should know before buying and using steel materials in a project, how it is used and what are its advantages and disadvantages. Then, by reading this material, you will find the power to make a choice and choose the right product for your project. What are the differences between hot plate and cold sheet? What are their advantages and disadvantages? There are other questions that people constantly ask to resolve their doubts about buying sheets, but the questions that we have addressed here are common questions and questions that we will ask in the following section and we will address them in detail. . In general, our explanations in these cases are divided into four general categories, including:

Hot plate compared to cold sheet: Price and sheet
In general, the price of cold sheet can be twice the price of hot sheet, because the process of working with cold sheet is more complicated than hot sheet. There is another process called salting and oiling between hot and cold sheets.

Hot and cold sheets: Application
Hot plate is always used to produce larger products, because large products must have more distinct shapes. Hot-rolled sheet is used as a raw material for the production of cold-rolled sheet and veneer sheet.

Smaller products need to be more durable and flexible, which is why they are always made of cold steel. Cold sheet is a product made of steel. This material is made of hot steel and without heating, it reduces its thickness in the lathe.

Cold sheets are used in: auto parts, bathrooms, construction and components, home appliances, electrical goods, furniture, etc., and the purchase of cold sheets in these cases is also.

Differences in the sheet making process:
Hot plate is a process related to the extraction and smelting of metals, which is mainly produced as a sheet or steel plate and is placed between a set of rolls.

The sheets are simply deformed or cut into steel plates. The temperature of the sheets is more than 1000 degrees Fahrenheit.

Cold sheet is another metal process that is at temperatures close to normal room temperature and is changed by passing rollers. Cold sheet is often used to reduce the thickness of steel sheets or plates and increase the strength and hardness of metal performance.

Hot plate compared to cold sheet: Advantages and disadvantages
Cold sheet has more precise dimensions than hot sheet, which is created by the hot sheet process. The cold sheet is now created through a cooling process that helps to achieve its final dimensions.

However, cold sheet shapes are limited and deform into round, square, flat shapes. If the dimensions are narrow and the cross-section is uniform, other shapes can be considered as cold sheets.

During the cooling process, the hot plate re-forms into different shapes, resulting in an inflexible end product. Hot rolled sheet is flexible compared to cold rolled sheet and can be shaped into different shapes.

Differences in production methods of steel sections (hot rolled and cold rolled)

Colored sheets without galvanized paint
Hot dip galvanized sheets

What is galvanization? In this section, we will explain this:

Hot immersion, or more simply, the immersion of an iron or steel sheet that is suitable for galvanizing in composition and shape and is immersed in molten material, is called galvanizing.

Galvanized sheet has been produced by hot flotation for about 150 years. Most of the zinc produced in the world is used for coating. One of the most important reasons for zinc resistance to natural decomposition is the nature of its strength and durability. In this production method, a piece of the desired sheet is suspended and floated in a tub of molten zinc material with a temperature of about 460 degrees Celsius. Once removed, the piece of zinc reacts first with oxygen and then with carbon to form a rust-resistant layer. This operation makes the metal resistant to rust.

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