difference between iron and steel and stainless steel

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What is the difference between iron and steel and stainless steel?

Steel is iron mixed with carbon where, in the iron and steel industry, will be less than 2.11% is the carbon content steel, called iron greater than 2.11%, alloy steel, stainless steel, also called, is joined in the common steel cobalt, chromium, nickel, tungsten, titanium, and other metals.

api welded steel pipe

2% of the carbon content in the "iron-carbon alloys", this steel is called "carbon steel". How much carbon steel according to carbon content, is divided into low-carbon steel, medium carbon steel, high carbon steel. Steel joined by other elements, called "steel". The purpose of smelting alloy steel, is designed to meet the needs of production and life.

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Stainless steel is a kind of alloy steel, adding more elements of Ci, Ni and other metal alloys, there are many kinds. Common stainless steel "ferritic stainless steels" and "austenitic stainless steel" in two ways. Ferritic stainless steels are body-centered crystal lattice, there are magnetic. For example: 1Ci13, and 2Ci13. often used to make utensils, decorative pieces. Austenitic stainless steels are face-centered crystal lattice, is not magnetic. For example: 1Ci18Ne9T, used in chemical, pharmaceutical and food industries. If someone says that, if use magnet to distinguish stainless steel, it is not comprehensive.