Difference between E6010 E6011 and E6013:

E 6010 vs. E6011 Electrodes

Both E 6010 and E 6011 electrodes are general-purpose electrodes used on vertical-up and over-head welding; both electrodes produce deep penetration welding and can be used on painted, galvanized, and unclean surfaces. 

The only difference that E 6010 rod is used with DC current, while E 6011 rod can be used with either AC or DC current.

E 6011 vs. E6013 Electrodes

E 6010 electrode can be used on painted, galvanized, and unclean surfaces, while E 6013 is used on clean or new sheet metal. Therefore, E 6010 is mostly found in maintenance and repair works, while E 6013 in new construction and fabrication.

E 6013 is the common electrode used for sheet metal welding; E 6010 and E 6011 replace E 6013 whenever the electrode is not available or whenever the welder prefers faster solidification.