ER309/309L is very similar to type 309 except for the carbon content being lower than .03%. Welding positions full, vertical, overhead, horizontal.

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Product Review

ER309/309L is very similar to type 309 except for the carbon content being lower than .03%. Welding positions full, vertical, overhead, horizontal.

  • The extra low carbon provides good resistance to carbide precipitation and corrosion
  • ER309L works well for dissimilar joints that undergo heat treatment
  • AWS A5.9, Welding Current DCEN

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