Effect of the Rolling Direction and Draft on Some of the Mechanical Properties for the Medium Carbon Steel

The paper aims to study the effect of four values of rolling direction (0o, 30o, 60o, 90o) with four ratios of reducing the plate thickness (15 %, 20 %, 25 % and 30 %) on some mechanical properties such as tensile strength, hardness, average flow stress and microstructure of medium carbon steel (DIN CK 45) using a cold rolling process as one of the plastic deformation processes for ferrous metals. The results show that the direction of rolling process in the range ( 0less than less than 90o) will take the inclined curve, where the average flow stress and hardness is less than it is in two-way horizontal and vertical to arrange the entry of the specimen, and there is a proportional relation between the angle of rolling and tensile stress theoretically and practically, So the direction of rolling affects on the microstructure with the absence of any change in the proportions of the components of engineering material.