Forging vs Rolling The difference in axial and radial mechanical properties of forgings is smaller than that of rolled products. In terms of the degree of transformation, the degree of deformation of the forging is much greater than that of the rolling, which means that the effect of breaking eutectic carbide through forging is better than that of rolling. In terms of processing cost, the cost of forging is much higher than the cost of rolling. Forgings have complete metal flow lines.