The difference between black iron pipe and carbon steel pipe

First, the material difference

Black iron pipe is processed with iron as the main raw material, and the surface has a black oxidized layer, hence the name. The main component of black iron pipe is iron, with lower carbon content, lower hardness and easy to rust. The main components of carbon steel pipe are carbon and iron, of which the carbon content is between 0.08% and 0.25%, high hardness, more solid and wear-resistant than black iron pipe.

Second, the difference in use

Black iron pipe is generally used for water supply, gas and other low-pressure piping systems, widely used in industry, construction, agricultural irrigation and other fields. Carbon steel pipe is often used to transport high-pressure, high-temperature liquids and gases, such as petroleum, chemical, electric power and other fields, can withstand greater pressure and load.

Third, the difference in corrosion resistance
Black iron pipe surface is easy to rust, its service life is shorter. If it is used for water pipes, it needs to be protected to avoid rusting. Carbon steel pipe has better corrosion resistance, adding some alloying elements to resist corrosion, long service life.
In summary, the difference between black iron pipe and carbon steel pipe is mainly manifested in the material, use and corrosion resistance. When choosing pipes, you need to choose according to the actual situation to ensure the stable operation and safety of the piping system.