Sets out requirements for cored electrodes for self-shielded and gas shielded automatic or semi-automatic arc welding. Includes low and intermediate alloy ferritic steel electrodes, along with carbon steel electrodes. Provides a coherent system of classification based on the method of construction, type of core, recommended welding position, shielding gas requirements, and weld metal properties. Specifies the properties and requirements for the manufacture of the electrodes and gives the methods of test. A comprehensive guide to the electrodes and other useful information are given in an appendix.