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Stainless steel usually refers to alloy steel with a certain anticorrosive ability. Its main chemical components are Ming element and nickel element.

Stainless steel usually refers to alloy steel with a certain anticorrosive ability. Its main chemical components are Ming element and nickel element.

Ordinary steel is carbon steel, that is, iron - carbon alloy. According to the carbon content, it is divided into low carbon steel (to be known as wrought iron), medium carbon steel and cast iron. Generally, those containing less than 0.2% carbon are called low carbon steel, commonly known as wrought iron or pure iron: those with a content of 0.2-1.7% are called pig iron with a content of 17% or more.