Self-shielding alloy composition having high and low diffusible hydrogen V-notch Charpy impact tough

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A flux cored welding electrode includes a ferrous metal sheath and a core within the sheath including core ingredients, the core ingredients including, in weight percent based on the total weight of the flux cored welding electrode : 2.0-3.0 aluminum, 1.0-2.0 manganese, and 0.001-0.5 rare earth metal oxide including three or more of Cerium (Ce), Lanthanum (La), Neodymium (Nd) and Praseodymium (Pr).