FIELD: heat treatment of metals and alloys, for example in machine engineering, for increasing ductility of steel blanks with keeping their strength properties after electrothermal treatment, namely of medium-carbon steel wire. SUBSTANCE: method of electric resistance heating of blanks of medium-carbon steel comprises steps of heating wire of medium-carbon steel by passing an electric current through it over a predetermined time period, the current having a predetermined density value. EFFECT: enhanced properties of medium-carbon steel wire. 1 cl, 1 dwg, 1 tbl
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