What is stainless steel? Below, the stainless steel hardware processing factory will provide a brief analysis for everyone. Stainless Steel is the abbreviation of stainless and acid-resistant steel. Steel grades that can resist weak corrosive media such as air, steam, and water or have the property of not rusting are called stainless steel. Steel grades that are resistant to corrosion by chemical corrosive media (such as acids, alkalis, salts, etc.) are called acid-resistant steel.

Due to the differences in chemical composition between the two, their corrosion resistance varies. Ordinary stainless steel is generally not resistant to chemical medium corrosion, while acid-resistant steel usually has non-rusting properties. The term "stainless steel" does not merely refer to a single type of stainless steel, but rather represents over a hundred types of industrial stainless steel. Each type of stainless steel developed has excellent performance in its specific application field. The key to success is first to clarify the purpose and then determine the correct steel grade. There are usually only six types of steel grades related to the application field of building construction. They all contain 17 to 22% chromium, and better steel grades also contain nickel. Adding molybdenum can further improve atmospheric corrosion, especially resistance to the corrosion of chloride-containing atmospheres.

Stainless steel refers to steel that is resistant to corrosion by 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. In practical applications, steel that is resistant to weak corrosive media is often referred to as stainless steel, while steel that is resistant to chemical media is called acid-resistant steel. Due to the difference in chemical composition between the two, the former is not necessarily resistant to chemical medium corrosion, while the latter generally has non-rusting properties. The corrosion resistance of stainless steel depends on the alloying elements contained in the steel.