Miller says E6013 electrodes should only be used on what?

Clean, new sheet metal.

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  1. Clean, new sheet metal ✔
  2. Rusty pipe roots
  3. Thick structural beams

Why: E6013 gives a soft arc, minimal spatter and moderate penetration. It does not dig through rust or oil, so the metal must be clean.

Huh, didn't know that: E6012 gives shallower penetration and dense slag.

The dad joke
E6013 is a clean freak. It will not go near rust, oil or paint.
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References

Answer: Clean, new sheet metal. E6013 gives a soft arc, minimal spatter and moderate penetration. It does not dig through rust or oil, so the metal must be clean.

  1. 8 Questions About Stick Welding Rods (Miller) www.millerwelds.com/resources/article-library/stuck-on-stick-easy-answers-to-not-so-simple-questions-about-common-electrodes
    You should only use these electrodes to weld clean, new sheet metal.
    Checked 2026-10-10.

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