FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy, namely to textured sheet of electrical steel used as material of iron cores of transformers. On surface of steel sheet is applied by multiple linear grooves grinding magnetic domains. Each of linear grooves has at bottom a plurality of depressed portions aligned in the direction of the stretch of the linear groove with interval p (mcm), satisfying the following condition: 0.20W≤p≤1.20W, where W is the opening width of the linear groove (mcm). Recessed part of grooves has depth d (mcm) satisfying the condition: 0.10D≤d≤1.00D, where D is average depth of linear groove (mcm).
EFFECT: sheet has improved characteristics of losses in iron at reduced reduction of magnetic flux density.
5 cl, 4 dwg, 2 tbl, 2 ex
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