Use a mild steel filler meta, 3/32" diameter, free of rust.
(American Welding Society classification A5.2) DO NOT
use copper-coated filler metal.
Use a number 3 or 4 tip. Read instructions of the equipment manufacturer when adjusting
the operating pressures at the gas regulators.
Clean the parts to be welded.
Incline the torch at a 45º angle away from the direction of travel. Use the forehand
welding technique. Keep the torch flame on the tip of the filler rod not in the center of