Concept of a structural integrity model for prediction of hydrogen embrittlement and damage in steels: (1) Industrial component; (2) Hydrogen damage of boiler evaporator tube; (3) Application of a structural integrity model – correlation between material macro-mechanical behaviour and simultaneously active HE micro-mechanisms (HELP+HEDE); (4) Assessment of hydrogen critical concentrations, and (5) Predictive maintenance activities. (Milos B. Djukic, Gordana M. Bakic, Vera Sijacki Zeravcic, Bratislav Rajicic, Aleksandar Sedmak, Radivoje Mitrovic, Zarko Miskovic, Towards a Unified and Practical Industrial Model for Prediction of Hydrogen Embrittlement and Damage in Steels, Procedia Structural Integrity. 2016;2:604-611. doi: 10.1016/j.prostr.2016.06.078)