FIELD: metallurgy.
SUBSTANCE: invention relates to production of non-textured electrical steel sheet. Blank sheet steel contains the following components, wt%: Si: 0.1-2.0, Al: 0.1-1.0, Mn: 0.10-1.0, C: ≤ 0.005, P: ≤ 0.2, S: ≤ 0.005, N: ≤ 0.005, rest is Fe and unavoidable impurities. Magnetic permeability of sheet steel meets following expressions: µ10+µ13+µ15 ≥ 13982-586.5P15/50, 10µ+µ13+µ15 ≥ 10000, where P15/50 represents losses in iron at 50 Hz and magnetic induction of 1.5 T; µ10, µ13, and µ15 are relative magnetic permeability at magnetic induction 1.0 T; 1.3 T and 1.5 T at 50 Hz respectively.
EFFECT: steel possesses low losses in iron and high magnetic permeability.
6 cl, 4 dwg, 2 tbl, 2 ex
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