FIELD: mechanical engineering for operative specimenless quality control of metal, postoperative control, strength test of metalworks and structures. SUBSTANCE: to estimate the metal strength characteristics (ultimate strength, yield point, impact strength, reduction of area and elongation), use is made of the physical characteristics of the process of indented introduction - maximum rate of introduction, time of the entire process, depth of indenter penetration determined by formulas: Hv= 3246.95+18.68l-3.56 Vmax - 506.8t; HRC=123.06-6.31l; Sv=512.96+5.54l - 10.25 Vmax - 103.28t; St=712.31+5.98l-12.28 Vmax - 104.16t; F=503.47+16.64l-103.18 Vmax-104.87t; A= 143.25+9.82l-47.04t, where l - depth of indenter penetration; Vmax - maximum rate of process; t - process time; Hv - Vickers hardness; HRC - Rockwell hardness; St - yield point; Sv - ultimate strength; F - reduction of area; A - specific viscosity. EFFECT: facilitated procedure. 1 dwg 2 tbl
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