Hot Pass Pipe Welding Technique
My hot pass or filler pass was done using a weave with a 3/32 E7018 electrode. The technique I used was to hold the sides until the weld washed into the bevel. The upper part of the bevel was held about 2 seconds and the bottom was held for about 1 second. This is the easiest part of the welding certification.
Hot Pass In The 6G Position
Before putting in the hot pass I grinded down the roots surface. When it comes to welding certifications some inspectors do not allow grinding at all but with the E6010 root they almost always allow to grind down the root. Most of the time everyone piggy backs there tacks, so you will have a few lumps on the outside of the root from the restarts. When it comes to grinding down the roots surface on critical joints it is always allowed.
Here is are the pictures of my hot pass. As you can see the bevel is mostly filled and there is no slag on the edges of the bevel. When putting in a filer pass the slag should come off pretty easily! If not, that means you are not holding the sides long enough and there is a possibility of slag inclusions.