FIELD: metallurgy, in particular, steelmaking. SUBSTANCE: method involves treating steel melt till solid crystallization phase by torsion radiation of spectrum of at least three characteristic frequencies. Such method may be used for manufacture of cast parts, as well as for production of billets which may be used for further conversions. EFFECT: wider range of changes in physico-mechanical characteristics and improved structure of steel. 3 cl, 5 tbl, 4 ex
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