Patent ID: 8785000
Filing Date: 2014-07-22
Classification: B32B,C22C,C23C,Y10T

Abstract:
1. Steel strip provided with a hot dip galvanized zinc alloy coating layer, wherein the zinc alloy consists of: magnesium; aluminium; optional <0.2 weight % of one or more additional elements selected from the group consisting of Pb, Sb, Ti, Ca, Mn, Sn, La, Ce, Cr, Ni, Zr and Bi; unavoidable impurities; the remainder being zinc; wherein the magnesium and aluminum content in the zinc alloy layer is selected from a member of the group consisting of: 1.6-1.9 weight % aluminium and 1.4-1.7 weight % magnesium; wherein the zinc alloy coating layer has a thickness of 3-10 μm, wherein silicon content in the zinc alloy layer is below 0.0010 weight %.