| 摘要 |
PROBLEM TO BE SOLVED: To produce a sake tank in which the elution of Fe ions into sake and its yellowing can be suppressed so as to be satisfied and furthermore having resistance to impact. SOLUTION: This sake tank is the one in which tank walls 11, 12 and 13 are composed of ferritic stainless steel, in which, as for the stainless steel, among the contained components, the content of Cr is set, by weight, to 19.0 to 23.0%, Mo to 1.0 to 2.5% and C to <=0.01%, the bead parts of the weld zones 11a, 12a and 13a on the inside of the tank are made smooth by grinding, and a passive film is formed on the surface. |
