• Carbon seamless steel tube is made from the solid bar which is perforated to hollow billet, through hot rolling, cold rolled or cold drawn.cold drawn seamless steel tube raw materials are carbon tubular billet.Cold drawn seamless steel tube classify: cold rolled ( cold drawn) or hot rolling.       

• Carbon steel tubes are made of steel ingots or solid tube billets through the perforation and then are made of hot rolled, cold rolled and cold drawn machine.                                                                

• Carbon steel tube is mainly referred to the mechanical properties depend on the carbon content in steel, and generally, do not add a lot of alloy element in steel, sometimes referred to as the carbon steel pipe or carbon steel pipe.Carbon steel pipe is also called the carbon steel pipe, carbon content WC is less than 2% of the iron-carbon alloy.Carbon steel tube in addition to carbon generally contain small amounts of silicon, manganese, sulfur, and phosphorus

According to carbon content, it is three level: low carbon steel, middle carbon steels, and high carbon steel. 

A. low carbon steel (C 0.25% or less); 

B. medium carbon steel (C acuities were 0.25 ~ 0.60%);

C. high carbon steel (0.60%) or less c.