What are runoff tabs used for?

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Prepare for the California Structural Steel Contractor C-51 License Exam. Use our flashcards and multiple choice questions, each with hints and explanations. Ensure you are ready for the exam!

Multiple Choice

What are runoff tabs used for?

Explanation:
Runoff tabs are placed beyond the joint to give the welder a place to finish the weld. By ending the bead on the tab, you avoid creating a crater or lack of fusion at the very end of the weld, which can lead to cracks or weak spots as it cools. The tab is welded on so the weld can be completed and fused properly, then removed or ground away for a clean joint. This practice mainly helps ensure a sound, defect-free weld rather than guiding alignment, reducing heat, or shaping the bead.

Runoff tabs are placed beyond the joint to give the welder a place to finish the weld. By ending the bead on the tab, you avoid creating a crater or lack of fusion at the very end of the weld, which can lead to cracks or weak spots as it cools. The tab is welded on so the weld can be completed and fused properly, then removed or ground away for a clean joint. This practice mainly helps ensure a sound, defect-free weld rather than guiding alignment, reducing heat, or shaping the bead.

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