• Arc Welding Electrodes Arc Welding Electrodes In addition to establishing the arc and supplying filler metal for the weld deposit, arc welding electrodes introduce other materials into or around the arc. Depending upon the type of electrode being used, the covering performs one or more of the following functions: Provides a gas to... Read more >>
  • Arc Welding Electrode Classification System ** Arc Welding Electrode Classification System. ** The SMAW electrode classification code contains an E and three numbers, followed by a dash and either “15” or “16” (EXXX15). The E designates that the material is an electrode and the three digits indicate composition. Sometimes there are letters following the three... Read more >>
  • Arc Welding Electrodes Arc Welding Electrodes. When molten metal is exposed to air, it absorbs oxygen and nitrogen, and becomes brittle or is otherwise adversely affected. A slag cover is needed to protect molten or solidifying weld metal from the atmosphere. This cover can be obtained from the electrode coating, which protects the... Read more >>