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Performance comparison of galvanised steel sheet and ordinary steel sheet

Nov 02, 2023

When we choose steel plates, we need to decide whether to choose galvanized steel plates or ordinary steel plates. Both types of steel plate have some significant differences in performance, appearance, and applications.


Galvanised steel sheet:

Galvanized steel sheet is a type of steel that has been hot-dip galvanized or electro-galvanized to increase its corrosion resistance. This process involves dipping steel panels into molten zinc, which fuses the zinc with the surface of the steel panels to form a protective galvanized layer. This layer of galvanizing can effectively prevent the steel plate from being corroded by oxygen, water and chemicals, thereby extending its service life. Galvanized steel is commonly used in applications requiring high corrosion resistance such as outdoors, building structures and refrigeration equipment.


Ordinary steel sheet:

Unlike galvanized steel panels, ordinary steel panels do not have a galvanized protective layer. It is usually raw, untreated steel plate. While ordinary steel plate performs well in many applications, its resistance to corrosion and oxidation is relatively low. Therefore, regular steel plates are more suitable for indoor applications or those projects that are not exposed to harsh weather conditions.


Summary of differences:

Corrosion resistance: Galvanized steel has excellent corrosion resistance and is suitable for use in humid and corrosive environments. Regular steel plates require additional protection to prevent corrosion.


Appearance: The surface of galvanized steel sheet is covered with a metallic luster zinc layer, giving it a smooth and bright appearance, while ordinary steel sheet are usually gray or black.


Cost: Typically, galvanized steel panels are more expensive to manufacture because of the additional galvanizing process required.


If you are considering purchasing steel sheet, you should choose the appropriate type based on the specific requirements of your project. If your project requires corrosion resistance, especially if it's outdoors or in a high-humidity environment, then galvanized steel sheet may be a better choice. And if the project is located indoors or is not susceptible to corrosion, ordinary steel plates may be more cost-effective.


No matter which type of steel plate you choose, we can provide high-quality products to meet your needs. If you have any questions about steel plate selection or any other questions, please feel free to contact us. Our team of experts will be happy to provide you with help and advice.

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