FIELD: metallurgy.
SUBSTANCE: invention refers to metallurgy, particularly to a regular grain-oriented steel sheet. Sheet comprises a steel substrate on at least one surface of which there is a forsterite coating and a secondary coating. Steel substrate of the sheet contains chromium in a concentration of 0.45 wt% or more, and the forsterite coating is formed on said at least one surface after decarburization annealing by rapid heating at a rate higher than 500 °C/s.
EFFECT: sheet has a high adhesion of forsterite coating and secondary coating without flaking defects after a coating adhesion test.
8 cl, 16 dwg, 3 tbl, 2 ex
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