porosity in steel.

I welded some 1/4 wall 2x2 steel tubing and noticed some porosity . 195 amps ,3/32/ rod 702s2 1/8 thor electrode. 7 lpm.??


Things that cause porosity...

oil or grease


too much or too little torch gas

bad gas

extending the electrode too far out past the nozzle

collet in backwards

clogged gas lens collet body

leaking gas line in torch, lead, or from regulator flowmeter to machine

accidentally getting the chair leg on top of the argon line.

could it be any of these?

hope this helps,


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