This quick 3 minute video shows that 130 amps works really well on a 2F tee joint using Lincoln Excalibur 1/8" 7018 stick rod.
But the kicker is that 130 amps will also do a great job on an overhead 4F tee joint using the same 7018 1/8" rods.
An old timer once told me that "overhead is just like flat except upside down"
While I dont think thats 100% accurate. Its food for thought.
I really struggled with overhead stick welding while I was in welding school.
I thought I need to turn down the amperage and weld it cold so that it wouldn't sag or fall out on me.
Once I learned to hold a tight arc, I could use the same amperage as I used on a 2F tee and things worked out way better for me.
I think realistically, bumping amperage down to about 120-125 for 7018 overhead works pretty well with less tendency for arc blow toward the end of each rod but I just wanted to show that both 2f and 4f tee joints could be welded at 130 amps with a 1/8" 7018.
7018 electrodes from different companies all have slightly different amperage ranges too.
I used Lincoln Excalibur 7018 for this video. But other 7018 electrodes like Hobart, Esab, and ConArc all require slightly different amperage settings.
Some 7018 1/8" rods run better at higher amps like 135 , some run better at lower amps like around 125.
Stick welding machines can be off a bit too.
I like to start off with around 125 and adjust according to how the rod acts.
If I start seeing some arc blow where the rod starts burning weird as it gets shorter, that is usually an indication that I need to lower amps a bit.
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