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Difference between galvanized sheet and stainless steel support for aviation obstruction light
Galvanized sheet: Galvanized sheet is a steel sheet with a layer of zinc on its surface. Zinc plating is an economical and effective rust-proof method which is often used. About half of the world's zinc production is used in this process.
Stainless steel: Stainless steel is short for acid-resistant stainless steel. Weak corrosive medium such as air, steam, water or stainless steel is called stainless steel, while chemical corrosion resistant medium (acid, alkali, salt, etc.) is called acid-resistant steel.
Because of the difference in chemical composition between them, their corrosion resistance is different. Ordinary stainless steel is generally not resistant to chemical medium corrosion, while acid-resistant steel is generally stainless. The term "stainless steel" refers not only to one kind of stainless steel, but also to more than one hundred industrial stainless steels. Each stainless steel developed has good properties in its specific application fields. The key to success is first to understand the use, and then to determine the correct steel grades. There are usually only six types of steel related to the application of building structures. They all contain 17-22% chromium and nickel in better steel grades. Addition of molybdenum can further improve atmospheric corrosion, especially resistance to chloride-containing atmospheric corrosion.