FIELD: metallurgy.
SUBSTANCE: invention relates to metallurgy, namely to manufacturing of the steel plate with Al-Zn coating applied by hot dipping. Al content in Al-Zn coating is 20-95 wt %, Ca or Ca and Mg content in total in Al-Zn coating is 0.01-10 wt %. The surface layer of the steel plate within 100 micron from surface of the base steel plate just under Al-Zn coating contains oxide below 0.060 g/m2 of surface of at least one of the following elements: Fe, Si, Mn, Al, P, B, Nb, Ti, Cr, Mo, Cu and Ni.
EFFECT: plate has high corrosion resistance and superior appearance of the coating.
10 cl, 2 dwg, 3 tbl, 1 ex
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