Carbon Steel Pipe Dimensions & Schedule Chart

SMLS Pipe

Carbon steel pipe is the preferred choice in many applications due to its robustness, corrosion resistance and weldability.

However, to ensure the consistency, compliance, and reliability of carbon steel pipe across different projects, we need to rely on carbon steel pipe dimensional details.

How about the carbon steel pipe dimensions?

For your better understanding, we interpret it from the following aspects:

  • Important Parameters for Pipe Dimensions
  • Carbon steel pipe size chart
  • Different Standards for Carbon Steel pipe and Stainless Steel Pipe
  • Dimensions (ASME B36.10M and ASME B36.19M)

Important Parameters of Carbon Steel Pipe Dimensions

The size of carbon steel pipe is mainly described from several aspects such as outer diameter, wall thickness, Schedule, and Length.

These dimensional parameters usually play a key role in the steel pipe manufacturing and selection process.

Different application areas and industries may require different dimensional parameters, so understanding and describing these aspects of steel pipe is important to ensure the correct steel pipe is selected.

Steel Pipe Dimensions Chart

ASME B36.10M and ASME B36.19M

They are both dimensions and dimension standards used to regulate steel pipes. The main difference lies in the applicable steel pipe types and application fields:

ASME B36.10M

  • ASME B36.10M is mainly applicable to welded and seamless carbon steel pipes.
  • Carbon steel pipes typically used in general industrial applications such as water supply systems, conveying liquids or gases, and general structural purposes.
  • ASME B36.10M uses the Schedule system to represent steel pipes with different wall thicknesses, such as Schedule 40, Schedule 80, etc.

ASME B36.19M

  • Specifically for stainless steel and nickel alloy tubes, including welded and seamless tubes.
  • This standard is typically used in applications requiring greater corrosion resistance, such as the chemical industry, oil and gas extraction, and food processing.
  • Unlike ASME B36.10M, B36.19M does not use a scheduling system, but directly provides the actual wall thickness (actual thickness) of the pipe.

In general, ASME B36.10M is suitable for general applications of carbon steel pipes and welded and seamless pipes, while ASME B36.19M is specifically suitable for stainless steel and nickel alloy pipes, especially for applications in highly corrosive environments. Which standard to choose depends on the material required and the field of application.

schedule 40 steel pipe and 80 dimension

Schedule 40 and Schedule 80 are used to describe steel pipe specifications of different wall thicknesses.

Here are common carbon steel pipe sizes for Schedule 40 and Schedule 80 (for reference only):

Schedule 40 Carbon Steel Pipe

  • Outside Diameter (OD): Typically between 1/8″ and 24″.
  • Wall Thickness: Typically between 2.77mm (0.109 inches) and 17.48mm (0.688 inches).
  • This type of scheduling is commonly used in general industrial applications such as water supply systems, ventilation ducts, etc.

Schedule 80 Carbon Steel Pipe

  • Outside Diameter (OD): Typically between 1/8″ and 24″.
  • Wall Thickness: Usually between 3.73mm (0.147 inches) and 22.23mm (0.875 inches).
  • This type of scheduling is typically used in applications that require higher pressure tolerance, such as high pressure air or steam pipelines.

It should be noted that the above dimensions are for reference only. In a specific project, you need to choose the appropriate schedule and size according to the requirements of the project and the purpose of the pipeline. The detailed dimensions of carbon steel pipes can usually be found in relevant standards or specification sheets provided by suppliers.