Product Knowledge
MMA welding electrodes
A welding electrode is a fixed-length, straight welding wire coated with a filler material. The welding electrode has a fixing head with which it is attached to the electrode holder. The other end of the electrode has the ignition head with which the work piece is stuck to ignite the arc. The quality or trade name of the electrode is indicated near the fixing head in the coating. Usually also the AWS class ID is included.
The diameter of a welding electrode refers to the diameter of the metal rod inside the electrode. The purpose of the coating on the surface of the metal rod is to protect the welding event from the effects of the surrounding air, to produce slag to support the weld and to make the creation of the arc easier.
