What are the specifications and dimensions of carbon steel pipes?

As a key industrial material, carbon steel pipe (CS pipe) is widely used across a range of sectors. Depending on the application, different projects require specific specifications and dimensions to meet performance and design needs. Below is an overview of commonly used carbon steel pipe dimensions along with their typical specifications.

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1. Carbon Steel Seamless Pipe Specifications and Dimensions

Carbon steel seamless pipes are manufactured by heating solid steel billets and perforating them to create a hollow tube. Their size and specifications vary depending on the intended application.

Outer Diameter (OD): Typically ranges from 6 mm to 426 mm

Wall Thickness: Ranges from 0.8 mm to 80 mm

Length: Common lengths include 5.8 m, 6 m, and 11.8 m; custom lengths are available upon request

2. Carbon Steel Welded Pipe Specifications and Dimensions

Carbon steel welded pipes are produced by bending steel plates into circular shapes and welding the seam. These pipes are used in a wide range of applications and offer a broader diameter range.

Outer Diameter (OD): Usually between 21.3 mm and 1620 mm

Wall Thickness: From 1 mm to 30 mm

Length: Can be manufactured to standard or customized lengths depending on project requirements

3. Carbon Steel Square Tube Specifications and Dimensions

Carbon steel square tubes, with their rectangular cross-sections, are frequently used in construction, machinery, and structural applications.

Common Sizes: 20×20 mm, 40×40 mm, 50×50 mm, etc.

Wall Thickness: Typically ranges from 1 mm to 5 mm

Length: Usually 6 m, but custom lengths are also available

4. Carbon Steel Round Pipe Specifications and Dimensions

Round carbon steel pipes are widely utilized in fluid transport, heat exchange, and structural systems.

Outer Diameter (OD): Common sizes include 6 mm, 10 mm, 20 mm, 114 mm, etc.

Wall Thickness: Generally between 1 mm and 10 mm

Length: Standard lengths include 5.8 m and 6 m, with custom options available

5. Other Special Carbon Steel Pipe Specifications and Dimensions

In addition to standard pipe types, there are specialty carbon steel pipes designed for unique applications, such as oval, flat, or custom-shaped pipes. These are manufactured to meet specific engineering requirements where conventional pipe shapes may not suffice.

Note:
The table below provides reference data for carbon steel pipe outer diameter (OD), wall thickness, weight, and schedule. Nominal pipe sizes are listed in both millimeters and inches, with wall thickness specified in millimeters. All measurements conform to the ASME B36.10 standard.

Conclusion

Carbon steel pipes are available in a broad range of specifications and dimensions, allowing for flexible selection based on diverse engineering needs and application scenarios. Whether it’s seamless pipes, welded pipes, square tubes, or round pipes, carbon steel remains a fundamental material across industrial sectors. This article aims to provide a clear overview to help readers better understand the sizes and specification standards of carbon steel pipes.

For more: Carbon Steel Pipe Dimensions Chart