| 摘要 |
PURPOSE:To prepare the titled welding material having the improved corrosion resistance and mechanical strength of a weld metal part by incorporating a specific ratio of C, Ci, Mn, Cr, Ni, Mo, Cu, and N into Fe and incorporating Cr and Mo therein at the ratios higher than in a welding base metal. CONSTITUTION:The welding material which contains, by weight % <=0.08% C, 2.0-4.0% Si, <=2.0% Mn, 1-30% Cr, 6.0-20% Ni, 0.1-3.0% Mo, 0.3-4.0% Cu, and 0.05-0.30% N, contains <=1.0% at least one kind among Nb, Ti and Al as necessary, consists of the balance Fe and incidental impurities, and is so composed as to contain Cr and Mo at the ratios higher by about >=+2% (Cr+3Mo)% than in the welding base metal is prepd. The welding material for an austenitic stainless steel which provided the weld metal part having the excellent corrosion resistance and strength is thus obtd.
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