Application of E 6013 and E 7018

See for yourself: WELDING ELECTRODE CLASSIFICATIONS

For structural steel plates A-36, we recommend using of electrodes E6013. For pressure vessel plates A-516, we recommend using of Low Hydrogen Electrode E7018. For both process you can use SMAW.

See CR4 Thread Welding by 7018 Electrode Without Heating.

you can use either of them

amr soliman

AS you are aware that E 6013 weldmetal have 60000 PSI Tensile Strength & E 7018 whave 70000 PSI strength.

The weldmetal selection depends on the base metal mechanical & chemical properties as well as thk.

If we look at A 36 E6013 will be appropriate electrode.

Disregarding code and when welding upon less than a well prepared (clean) surface, I use a 60xx or P-5 rod for the root pass, chip/wire brush the slag and then 7018. The 60xx rods can "dig" into the base metal better than the 70xx. Using the 7018 rods require a little more pre-cleaning than 60xx. Practice, practice.... trial and error are the best teacher!