How To Choose Arc Welding Rods. In addition the weld arcs created by these welding rods are much easier to control than bare electrodes which are prone to causing lots of spatter. First place welding rods in an upright position or in a single row to prevent them from knocking against each other.
Your choice for a nickel-plated rod should focus on the result you hope to achieve. Whatever storage option you choose there are precautions. Choosing the right welding rod will determine the how easily the weld is performed and how strong the weld will hold.
For base metal with wide root openings choose an electrode that provides a concave weld face which is suitable for.
Whatever storage option you choose there are precautions. The welding rod you chose must be the proper material to fuse with the alloy of aluminum you are welding. Some other common rod sizes are 20 mm 32 mm and 50 mm. Except for directly under the arc heavy slag covers the entire weld puddle as you can see here.