In this study, the microstructure and mechanical properties of the 22MnB5 steel sheet wereinvestigated in different heat treatment conditions. The steel sheet heated to 700 degrees C, 800 degrees C, and 900 degrees C was subjected to air cooling, water quenching, and water quenching + temperingprocedures. Microstructural properties post-heat treatment were analyzed under an opticalmicroscope. To determine the mechanical properties, uniaxial tensile tests, and hardnessmeasurements were performed. The highest mechanical properties were achieved with thewater quenching from 800 degrees C and 900 degrees C. The elongation value was ranged of 2-4% with thewater quenching. Also, the tempering process slightly increased the elongation value. (C) 2020 The Author(s). Published by Elsevier B.V.