Selecting the Correct Strip Width for Tube Production: Roll-Kraft Quick Tips Article Series

Welcome back to our Roll-Kraft Quick Tips article series. Drawing from Roll-Kraft's Tube and Pipe Technical Tips video series, these articles bring together practical advice, proven setup techniques, and maintenance best practices that can help improve mill performance and product consistency.

In our next article, we’ll be focusing on Selecting the Correct Strip Width for Tube Production.

Strip width selection is one of the most frequently debated topics in the tube and pipe industry. While many assume strip width can be calculated simply by multiplying the finished tube diameter by pi, tube production introduces additional variables that significantly impact the required strip width.

Because welded tube production requires material to form both the tube and the weld bead, additional welding allowance must be incorporated into the strip width calculation. Beyond welding allowance, material type, gauge, breakdown design, fin pass configuration, and welding method all influence the final strip width requirements.

Lighter gauge materials often require wider strip widths, while heavier gauge materials may require narrower widths. Mills with multiple fin passes may reduce outside periphery differently than mills with fewer fin passes, affecting the strip width needed to achieve proper edge presentation at the welder.

Once the proper strip width is established, maintaining the intended outside periphery through each breakdown and fin pass becomes essential to delivering the correct tube size to the weld box.

Watch our video below for a full demonstration:

Have questions about your tube mill setup process or need help troubleshooting a production issue? Roll-Kraft provides tube and pipe tooling design, technical support, setup assistance, and project quoting support for manufacturers worldwide. Visit our Contact Us page to speak with our team about your application, tooling requirements, or production challenges.