Annealing is a heat treatment method that alters the microstructure of a material to alter its mechanical or electrical properties. Typically, in steels, annealing is employed to reduce hardness, increase plasticity and help eliminate internal stresses. Annealing may be a generic term and should refer to subcritical, intermediate or full annealing in a very type of atmospheres. The process of heating a metal or alloy to an acceptable temperature for an explicit amount of time and so slowly cooling (generally with the chamber cooling) is termed annealing. The essence of annealing is that the transformation of the pearlite when heating the steel to austenitizing. Once annealing, the tissue is near to that after equilibrium. Purpose of Annealing : Reduce the hardness of steel, improve malleability, and facilitate machining and cold deformation process. The chemical composition and organization of uniform steel, refining grain, to enhance the performance of steel or to arrange for ex