| 摘要 |
PROBLEM TO BE SOLVED: To provide a ferritic stainless steel for warm-water can body with which even in the case of performing a TIG (tungsten insert gas) welding without using back gas seal and using this can body under atmosphere of the warm water of city water in a state of being no careful about oxide scale, the excellent corrosion resistance can be obtained. SOLUTION: The ferritic stainless steel for welding gap-structural warm-water vessel, which is excellent in the corrosion-resistance at the welding gap part, consists of, by mass,≤0.02% C, 0.01-0.3% Si,≤1% Mn,≤0.04% P,≤0.03% S, 0.1-2% Ni, 22-26% Cr,≤0.8% Mo, 0.05-0.6% Nb, 0.05-0.4% Ti,≤0.025% N, 0.02-0.3% Al, wherein Cu as the impurity is limited to <0.1%, and the balance Fe with the other impurities. COPYRIGHT: (C)2009,JPO&INPIT
|
