Description
Blue Demon ER309/309L is very similar to type 309, except the carbon content is lower than .03%.
- The extra low carbon provides good resistance to carbide precipitation and inter granular corrosion
- ER309L works well for dissimilar joints that undergo heat treatment
- AWS A5.9, Welding current DCEP
- Positions: full, vertical, overheard, horizontal
- Size: 0.030