What is the classification and use of carbon steel?

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Carbon steel refers to iron-carbon alloy standard material with carbon content less than 2% and containing a small amount of impurities such as silicon, manganese, phosphorus and sulfur. The carbon content of industrial carbon steel is generally less than 1.4%. This is because after the carbon content exceeds this amount, the steel shows great hardness and brittleness, which is difficult to process and loses the production and use value. Carbon steel can be divided into ordinary carbon structural steel and high-quality carbon structural steel according to its quality. The allowable content of sulfur and phosphorus in high-quality carbon structural steel is lower than that of ordinary carbon steel, so the comprehensive mechanical properties are better than that of ordinary carbon steel.

Iron-carbon alloys containing less than 2% carbon. In addition to carbon, carbon steel generally contains small amounts of silicon, manganese, sulfur and phosphorus. According to the use, carbon steel can be divided into three types: carbon structural steel, carbon tool steel and free cutting structural steel. Carbon structural steel can be divided into building structural steel and mechanical structural steel. According to the carbon content, carbon steel can be divided into low carbon steel (wc≤0.25%), medium carbon steel (wc0.25%0.6%) and high carbon steel (wc> 0.

How is carbon steel classified?

An iron-carbon alloy with iron as the matrix and carbon as the strengthening element is called carbon steel. Carbon steel refers to iron-carbon alloy standard material with carbon content less than 2% and containing a small amount of impurities such as silicon, manganese, phosphorus and sulfur. The carbon content of industrial carbon steel is generally less than 1.4%. This is because after the carbon content exceeds this amount, the steel shows great hardness and brittleness, which is difficult to process and loses the production and use value. Carbon steel can be divided into ordinary carbon structural steel and high-quality carbon structural steel according to its quality. The allowable content of sulfur and phosphorus in high-quality carbon structural steel is lower than that of ordinary carbon steel, so the comprehensive mechanical properties are better than that of ordinary carbon steel.

Deoxygenation method symbol :Q235A? Where q represents the yield strength, 235 represents the value of the yield strength, A represents the quality grade of A, and F represents the boiling steel. Q235A? f- refers to boiling steel with yield strength of 235 N/mm and mass of class A. In addition to carbon, the chemical composition of carbon cast steel also contains a small amount of impurities such as silicon, manganese, sulfur and phosphorus. According to the quality of steel can be divided into ordinary carbon steel and high-quality carbon steel. (1) Ordinary carbon structural steel, also known as ordinary carbon steel, has a wide range of restrictions on carbon content, performance range, phosphorus, sulfur and other residual elements.

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