METHOD OF EVALUATION OF MECHANICAL PROPERTIES OF REINFORCING-BAR STEEL Russian patent published in 1997 - IPC

FIELD: mechanical engineering. SUBSTANCE: annealed reinforcing bar is used in the capacity of billet for tested samples, billet is divided into two parts, thickness of anisotropic layer is determined. Two samples are prepared from these parts of bar. Sample without machined surface is made from one part of billet, layer having thickness not less than that of anisotropic layer is removed from surface of the other part of rod. Then both parts are tensile- tested to breakage. Value of change of mechanical properties of annealed steel are used to assess determining characteristics by relation of parameters. EFFECT: improved reliability of method. 3 dwg, 1 tbl