sir what is the technique in doing rootpass in pipes using stick.electrode 6010

Francis38, thanks for your request, I'd use electrode 3/32" E6010. Why? Because the smaller puddle will give you greater control.

I'd go with no more than 1/8" land and using the 3/32" electrode bring your amps up slightly...start your arc away from a tack weld and blow a "keyhole" into the root...

Then upon completion of opening the keyhole without breaking the arc, slide the rod in deep into the groove so your arc is actually on the face of the root...

You'll hear a change in sound once you're in the keyhole with a slightly uphill angle to correct for gravity while in the 2G position simply bring your rod around maintaining the same angulation.

You shouldn't have to whip the rod with the keyhole technique.

Remember to set current = amps, arc length = your arc gap off the end of the electrode, angulation = what angle you point your rod at,

manipulation = how you oscillate the electrode and travel speed = how fast you move around the weld...

Control those five factors and you'll have a perfect weld every-time.

Please will you let me know if I've answered your question sufficiently or if I need to go into greater depth, no probs..thanks I appreciate you.