What is the difference between iron and carbon steel

Source:Haorui 　 Time: 2020-01-07 13:39:01　Hit:

　　I. Analysis from the perspective of carbon content:

　　1. Carbon steel: mainly refers to steel whose mass fraction of carbon is less than 2.11% and does not contain intentionally added alloying elements. Sometimes it is also called ordinary carbon steel or carbon steel. Carbon steel, also called carbon steel, refers to an iron-carbon alloy with a carbon content of less than 2.11%. Carbon steel generally contains a small amount of silicon, manganese, sulfur, and phosphorus in addition to carbon.

　　2.iron

　　(1) Pig iron: It is an iron-carbon alloy with a carbon content of more than 2%. The carbon content of industrial pig iron is generally 2.5% -4%, and contains elements such as C, SI, Mn, S, and P. It is iron ore. Products smelted in a blast furnace. According to the different forms of carbon in pig iron, it can be divided into steelmaking pig iron, cast pig iron, and ductile iron. Forging.

　　(2) Wrought iron: relatively pure iron refined from pig iron. Carbon content is below 0.02%, also called wrought iron, pure iron. Wrought iron has very soft texture, good plasticity, good ductility, and can be drawn into silk. The strength and hardness are low, and it is easy to forge and weld.

　　II. Analysis from other trace elements

　　Iron is a richer element in the earth's crust, second only to oxygen, silicon, and aluminum. Magnetite, hematite, limonite and siderite are important iron ore. Blast furnaces commonly used for ferrous metals are made by using coke as fuel and iron ore and charcoal as raw materials. Pure iron can be obtained by reducing pure iron oxide with hydrogen.

　　Carbon steel generally contains a small amount of silicon, manganese, sulfur and phosphorus in addition to carbon, while iron does not.

　　The above is my answer, I hope I can help you.

　　Extended information:

　　What is carbon steel

　　Carbon steel is the earliest and most used basic material in modern industry. The industrial countries of the world, while striving to increase the output of low-alloy high-strength steels and alloy steels, have also paid great attention to improving the quality of carbon steels and expanding the variety and scope of use.

　　At present, the proportion of carbon steel production in the total steel output of various countries has remained at about 80%. It is not only widely used in construction, bridges, railways, vehicles, ships and various machinery manufacturing industries, but also in modern petrochemical industries And marine development.

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