FIELD: ferrous metallurgy; may be used in treatment of liquid iron for improvement of its properties in subsequent heat treatment. SUBSTANCE: method includes treatment of iron melt, pouring into molds and feeding for heat treatment. Melt is treated with complex inoculant in the form of mixture containing, wt. %: FeSi, 15-20; Mg, 19-35; CaF, 20-60; FeO, 5-26. Complex inoculant is supplied to iron melt in the amount of 0.1-0.5% of melt weight. EFFECT: higher hardness of iron castings. 1 tbl
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