Relation analysis between break elongation and chemical components of hot-rolled ribbed-steel bar

AbstractHot-rolled ribbed-steel bar plays an important role in many fields. The chemical components influence the basic mechanical properties of hot-rolled ribbed-steel bar directly. By using partial correlation analysis, the linear regression and polynomial regression models of break elongation and chemical components of HRB400 were established. The mechanical properties can be ensured by adjusting the contents of chemical components to control the ingredients of production and optimisation scheme based on these models.