The company i worked for insisted i use 8018 on the repairs. This rod runs completely different from the 6010 and 6011 rods it is much smoother and easier. I also did repairs on crushing equipment and was told to use 7018 for that.
Welding Materials Handbook This Handbook Describes Various Welding Materials And Techniques Available Mild Steel Arc Aws Astme 6011 Steel Brazing Welding Education