Welding Rod Meaning. The first letter-number combination indicates the chemistry of the weld and will look like A1 B1 B2 B3. Ad We Stock Duplex Super Duplex Electrodes.
Welding rods play an important role in the strong and sturdy bonding of metals. A 301 302 304 or 35 welding rod is a good selection for stainless steel. A rod or heavy wire that melts and thus supplies metal in fusion welding.
Definition of welding rod.
Finally if the number ends in an R it means the rod resists moisture. Finally if the number ends in an R it means the rod resists moisture. Ad We Stock Duplex Super Duplex Electrodes. In other words its a wire joining the welder with the materials youre fusing together.