What is the difference between aluminum-zinc coated steel and stainless steel?
(1) Different concepts
1. Aluminum-zinc coated steel refers to a layer of metallic zinc-aluminum applied to the surface of steel plates to prevent corrosion and extend their service life. This thin steel plate with zinc coating is called aluminum-zinc coated steel.
2. Stainless steel refers to steel that is resistant to corrosion from weak corrosive media such as air, steam, and water, as well as chemical corrosive media such as acids, alkalis, and salts. It is also known as stainless acid-resistant steel.
(2) Different processing techniques
1. Aluminum-zinc coating mainly involves applying a dense layer of zinc-aluminum to the surface of the steel to prevent oxidation.
2. Stainless steel is made by adding other metal elements to the steel, resulting in structural changes that prevent rusting. Examples include chromium stainless steel, chromium-nickel stainless steel, and chromium-manganese-nitrogen stainless steel.
(3) Different uses
1. Aluminum-zinc coated steel products are mainly used in industries such as construction, light industry, automotive, agriculture, and commerce. For example, they are used for building roof panels, roof grids, automotive parts, and the back panels of household appliances like refrigerators, gas stoves, and air conditioning units.
Stainless steel is mainly used in the construction field and is one of the strongest materials among metal materials used in construction. It is also used in fields that require high sanitary conditions, such as food processing, catering, brewing, and chemical industries.
(4) Different surfaces
Aluminum-zinc coated steel generally has small zinc flowers and a whitish surface.
The surface of stainless steel is relatively smooth and has no patterns.
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