FIELD: metallurgy.
SUBSTANCE: method involves preparation of zinc coating layer by immersion in a zinc melt with aluminium and magnesium, containing 0.1 wt % or more to 22.0 wt % or less of aluminium, 0.1 wt % or more to less than 1.5 wt % magnesium, zinc is the rest, contacting the said steel sheet with the said zinc coating with water vapour in a closed vessel with the oxygen concentration in the closed vessel 13% or less to obtain a steel sheet with zinc blackened coating. In the embodiment of this method, before or after steel sheet contacting with water vapour, steel sheet forming is carried out.
EFFECT: steel sheet provided with black resistant coating having excellent design, formability and corrosion resistance.
10 cl, 2 dwg, 13 tbl, 126 ex
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