ZINC- OR ZINC ALLOY-COATED STEEL SHEET HAVING EXCELLENT SPOT-WELDABILITY AND PROCESS FOR PRODUCING SAME

摘要

ZINC- OR ZINC ALLOY-COATED STEEL SHEET HAVING EXCELLENT SPOT-WELDABILITY AND PROCESS FOR PRODUCING SAME A zinc- or zinc alloy-coated steel sheet having an excellent spot-weldability, comprising: a base steel sheet; one or more layers coated on the steel sheet, at least one of the coated layers containing zinc as a major component; and an oxidized layer formed on the outermost of the coated layers and containing zinc in an amount of from 0.03 to 3.0 g/m2, the oxidized layer containing at least one of zinc oxide and zinc hydroxide.