CLASSIFICATION OF WELDING ELECTRODES
Classification of welding electrodes consists of a prefix letter “E” specifying an electrode, a group of two or three digits specifying weld metal strength in ksi in the ‘as-weld’ or stress relieved condition, and a final two digits specifying type of covering, weld position and current characteristics. 1. Nomenclature of electrode specification: E60xx – 60ksi (420MPa) E70xx – 70ksi (490 MPa) E80xx – 80ksi (560 MPa) E90xx – 90ksi (630 MPa) E100xx – 100 ksi (700 MPa) Exx10 – Cellulosic covering for the use with DC reversed polarity (E6010) – Deep penetration and all positions electrode for general purpose. Exx11 – Cellulosic covering for AC or DC., all position. (E6011) – Deep Penetration and thin slag, X-ray quality weld. Exx12 – Rutile covering AC or DC, all positions. (E6012) – Medium penetration, good choice for fit-up work. Exx13 – Rutile electrode, AC or DC, all position. (E6013) – Good performance in sheet metal welding. Exx14 – Iron powder rutile same character...