The Effect of Full Annealing on the Micro-Structure and Mechanical Properties of Cold Drawn Carbon Steel

ABSTRACT

The aim of this work is to determine the mechanical properties of cold drawn low carbon steel subjected to full annealing. The specimens were slowly heated up to a temperature of 9000C followed by soaking treatment of 60 minutes under this temperature in a muffle furnance. Tensile, charpy and Brinnel hardness tests were conducted to determine the yields strengths, tensile strengths, impact strengths and hardness of the annealed steel. The yield strength, tensile strength, hardness and toughness of the nail are greater in the non-treated nails when compared to the fully annealed nails at 60 minutes soaking time.