With so many steel materials, which category does carbon steel pipe belong to? What is the difference between carbon steel pipe and seamless steel pipe? How to divide carbon steel pipe. In fact, carbon steel pipes are mainly determined by their carbon content of them. Carbon steel pipes are classified as follows according to the carbon content.

Low carbon steel pipe - the carbon content is less than about 0.25%. Oil, oil and gas, and utility media with design pressure below 10MPa

Medium carbon steel pipe - the carbon content is about 0.25 to 0.60%, such as 35, 45 steel, etc.;

High carbon steel pipe - the carbon content is more than 0.60%. This type of steel is generally not used to make steel pipes.

Carbon steel pipes contain a certain amount of carbon, as well as silicon and manganese. Does not contain other alloying elements. Note that the silicon content generally does not exceed 0.40%. In order to ensure the chemical composition and mechanical properties of carbon steel pipes, the content of impurities such as sulfur and phosphorus must be controlled below 0.035%. In this way, high-quality carbon steel pipes can be produced.

Carbon steel pipes rely on the adjustment of carbon content to continuously strengthen the mechanical properties of carbon steel pipes, thus producing carbon steel pipes for different purposes, which are determined according to the carbon content. Some can be used in the manufacture of mechanical structures, as well as in building structural parts and pipes for conveying fluids. It is also used in agricultural irrigation and water conservancy projects and has a wide range of uses.

1. Seamless steel pipe is a steel pipe without a welding seam manufactured by the piercing hot-rolling method. It is sometimes necessary to further cold work the hot worked tube in order to obtain the corresponding shape and size. The carbon steel pipe is generally manufactured into round, square, flat, and other shapes after multi-rolling. Seamless carbon steel pipe belongs to a kind of seamless steel pipe.

2. Seamless steel pipes are the most commonly used pipes in petrochemical production facilities today. Carbon steel pipes are more widely used. At the same time, the main requirement for the chemical composition of carbon steel pipe is the content of carbon.

The above briefly introduces the difference between carbon steel pipe and seamless steel pipe. If you want to buy a seamless carbon steel pipe, please contact us.

BAOLAI is a professional custom seamless steel pipe manufacturer. Seamless steel pipes are made of carbon steel, alloy steel, stainless steel ingots, or solid tube billets, which are hot-rolled, cold-rolled or cold-drawn. Our seamless steel pipes are available in sizes 1/2"-36" and meet API, ASTM, BS, DIN, and JIS standards for the transportation and construction of liquids and gases.