Seamless Steel Round Tubing

Comprehensive Guide to Seamless Steel Round Tubing

Understanding Seamless Steel Round Tubing

Seamless steel round tubing is primarily designed for structural uses. The manufacturing process, known as extrusion, involves creating a hollow tube by piercing a heated solid steel bar. There are two primary types of seamless tubing: Cold Drawn Seamless (CDS) and Hot Finished Seamless (HFS).

Key Differences Between CDS and HFS Tubing

While both CDS and HFS steel tubes provide excellent strength and durability, their production methods yield different benefits. The choice between Cold Drawn and Hot Finished Seamless tubing should align with your specific application requirements.

Cold Drawn Seamless Tubing

Cold Drawn Seamless tubing is crafted by hot rolling SAE 1018 carbon steel and then drawing it at ambient temperatures. This method produces a tube characterized by high yield strength, precise tolerances, and a smooth surface finish, making it suitable for a range of mechanical applications. It conforms to ASTM A519 standards.

Hot Finished Seamless Tubing

Hot Finished Seamless tubing is manufactured from SAE 1026 carbon steel using the extrusion method, sans the final drawing step. This approach results in a product that is easier to machine, ideal for applications where tight dimensional tolerances are not essential. HFS tubing also complies with ASTM A519 standards.

Uses of Seamless Round Steel Tubing

Seamless steel tubing is prominently utilized across various mechanical applications. The CDS method yields tubes with tight tolerances and smooth finishes, whereas HFS tubes are thicker and have a rougher surface. Both types offer durability and excellent machinability, with CDS generally providing a higher strength-to-weight ratio.

Common Uses for Cold Drawn Seamless Tubing

  • Hydraulic components
  • Automotive parts
  • Structural applications
  • Rollers
  • Heavy machinery
  • Agricultural equipment

Common Uses for Hot Finished Seamless Tubing

  • Hydraulic components
  • Oil and gas industry parts
  • Rollers
  • Drilling machinery
  • Agricultural equipment
  • Sleeves
  • Bushings
  • Spacers
  • Axles

Conclusion

Seamless steel round tubing is crucial in various industries due to its strength and versatility. Understanding the differences between CDS and HFS tubing helps in selecting the right type for your needs. For more information or to explore options, feel free to reach out!