The susceptibility to hydrogen induced cracking (AIH) of welding joints in an armor steel specification MIL A46100 using an implant test with modified geometry, recovering electrodes AWS E11018M and SMAW process with low input energy was evaluated. The welded joints were produced with and without preheating and using welding electrodes with and without exposure to atmospheric conditions. The AIH resistance was severely impaired by improperly stored conditions of the welding electrodes. Preheating conditions did not preclude AIH.