Relationship between Yield stress and yield Strength on Various Grade of steel Being Hot rolled

Abstract

Stress is ability of materials to resist failure. The relationship between yield strength and yield stress of various grade of steel being hot rolled is necessary to predetermine the failure of engineering materials.The Torsional tests obtained by previous researchers for temperature range of 600 0 C to 1201 0 C and Strain rate of 0.0001 to 5.0 sec-1 were analyzed with the aim of obtaining the relationship necessary to describe the yield stress and yield strength of each material as a function of the deformation variables (Strain rate and temperature). The Stress-Strain data provided by the data were transformed to generate Stress-Strain equations, which were consequently used to determine the yield Stress and yield strength, likewise the relationship between the yield stress and yield strength due to load and torque for all the materials analyzed.