I have a job site where the welder was welding the steel (joist seat welds, joist bottom chord to columns) with E7024 mild steel electrodes. We specify E7018 low hydrogen electrodes. I don't have enough of a background in welding knowledge to tell if this is a problem or not. The E7018 are recommended by the manufacturer for structural applications while the E7024 are recommneded for use on construction equipment, ships, and railcars. Does anyone have experience in what kind of problems this can have?
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