STEEL SHEET FOR HOT STAMPING AND METHOD OF PRODUCTION OF HOT-STAMPED PART USING STEEL SHEET FOR HOT STAMPING Russian patent published in 2014 - IPC C25D5/26 C23C2/06 B21D22/20 C22C38/60 C22C18/00 C22C19/03 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, particularly to production of hot-stamped part that feature high corrosion resistance. Two plies are successively applied on steel substrate surface: plating ply I containing 60 wt % and more of Ni, Zn and unavoidable impurities making the rest. Note here that coating mass varies from 0.01 to 5 g/m²; and plating ply II, containing 10 to 25 wt % of Ni, Zn and unavoidable impurities making the rest. Note coating mass varies from 10 to 90 g/m².

EFFECT: higher resistance to perforating corrosion.

8 cl, 3 tbl, 2 ex