Definition of Carbon Steel Pipe

Definition of Carbon Steel Pipe

Carbon steel pipe is a type of pipe made primarily from carbon steel, which is an alloy of iron and carbon. It is widely used in various industries due to its strength, ductility, and affordability. Carbon steel pipes are used for transporting fluids and gases, structural applications, and in mechanical systems. The properties of carbon steel pipes can vary significantly based on the amount of carbon and other alloying elements present in the steel.

Classification of Carbon Steel Pipe

Carbon steel pipes can be classified based on several criteria, including:

1. Carbon Content

Low Carbon Steel Pipe: Contains up to 0.25% carbon. It has excellent ductility and weldability, making it suitable for forming and welding applications.

Medium Carbon Steel Pipe: Contains 0.25% to 0.60% carbon. This type has higher strength and hardness compared to low carbon steel but is less ductile. It is often used in applications requiring moderate strength and wear resistance.

High Carbon Steel Pipe: Contains 0.60% to 1.0% carbon. This type offers high strength and hardness but has lower ductility. It is mainly used for applications requiring high strength, such as tools and dies.

2. Manufacturing Process

Seamless Carbon Steel Pipe: Made without any seams or welds, ensuring uniform strength and reliability. It is produced by drawing the steel through a mold.

Welded Carbon Steel Pipe: Made from flat steel sheets or plates that are rolled into a cylindrical shape and then welded along the seam. This type is generally cheaper to produce and can be made in larger diameters.

3. Application

Structural Pipe: Used in construction and infrastructure projects for support structures and frames.

Mechanical Pipe: Used in machinery and equipment for transporting fluids and gases.

Oil and Gas Pipe: Specifically designed for the oil and gas industry, often treated for corrosion resistance.

4. Wall Thickness

Standard Wall: Common thickness for general applications.

Schedule 40/80: Indicates specific wall thicknesses; Schedule 80 has a thicker wall compared to Schedule 40, allowing it to withstand higher pressures.

5. Surface Treatment

Black Steel Pipe: Uncoated and used for gas and water transportation.

Galvanized Steel Pipe: Coated with zinc to improve corrosion resistance, suitable for outdoor applications.