WELDING METHOD OF GALVANIZED STEEL PLATE HAVING EXCELLENT CORROSION RESISTANCE AND ZINC EMBRITTLEMENT CRACKING RESISTANCE OF WELD

摘要

PROBLEM TO BE SOLVED: To provide an arc welding method of zinc-based alloy plated steel plate capable of obtaining a weld having excellent corrosion resistance and liquid metal embrittlement cracking resistance by suppressing the liquid metal embrittlment cracking of a weld, in particular, a weld metal of stainless steel based component when performing the arc welding of the zinc-based alloy plated steel plate by using a stainless steel-based welding wire.;SOLUTION: In the arc welding method of zinc alloy plated steel plate having excellent corrosion resistance and liquid metal embrittlement cracking resistance of a weld, a weld metal containing a ferritic phase of ≥25% in terms of area ratio and having the tensile strength (TSW) of ≤1.8 in terms of the ratio (TSW/TSB) to the tensile strength (TSB) of a base metal is formed by using a stainless steel welding wire containing for alloy components, by mass to the total mass of the wire, 0.01-0.05% C, 0.1-0.5% Si, 0.5-3% Mn, 7-12% Ni, and 24-30% Cr, while limiting ≤1% Mo and N ≤0.1%.;COPYRIGHT: (C)2006,JPO&NCIPI