Welding Docol Tube R8

Welding Docol Tube R8

- Zach Guzman

A common question asked to the A.E.D. staff is, “How do I weld Docol Tube R8?”

The answer is welding Docol Tube R8 is very similar to welding other roll cage and chassis materials like 4130 Chrome Moly and 1020 DOM.

Here is what to know when preparing to weld Docol Tube R8:

  • Docol is suitable to be either “TIG” or “MIG” weld
  • Spec calls for ER80SD2 filler material but ER70S is also suitable for both “TIG” and “MIG”
  • Docol requires very little prep work - Due to no oxidation or decard layer there is no need for grinding on the tube to prep the weld area, just wipe the oil off and go.
  • Due to low alloy counts and a clean oxide free surface, Docol is easily welded to other types of steel
  • DO NOT PREHEAT THE MATERIAL – Docol as a finished tube is NOT a heat treatable material. Any attempt to heat treat Docol may result in what is know as a “dead soft” material.
  • To reduce the width of the HAZ as much as possible, it is recommended that you keep the heat input as low as possible while still maintaining a good penetration

Check out these videos from SSAB and Tig Time with Mr. Tig presented by Weld.com on "How to Weld Docol Tube R8"


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